Double-sided liquid crystal display screen

Abstract

The present invention relates to a double-sided liquid crystal display screen, comprising: a first frame component, a second frame component, and two liquid crystal display screens arranged back to back; the first frame component is arranged and the second frame component is arranged on opposite sides of the liquid crystal display screen respectively; the first frame component comprises a first substrate and a first side plate, and a first clamping space is formed between the first side plate and the first substrate; the second frame component comprises a second substrate and a second side plate, and a second clamping space is formed between the second side plate and the second substrate; the first substrate is provided with wiring and component placement grooves; the liquid crystal display screen comprises a light guide plate, an optical film, and a liquid crystal panel arranged in sequence, and the edge of the liquid crystal display screen is clamped and supported by the first clamping space and the second clamping space. The present invention plays a role of tightly fixing and supporting the two liquid crystal display screens through the first frame component and the second frame component, reduces the gap between the liquid crystal display screens, thereby making the overall thickness of the liquid crystal display screen relatively thin, and increasing the support stability.

Description

Technical Field

[0001] The invention relates to the field of liquid crystal display screens, and in particular to a double-sided liquid crystal display screen. Background Art

[0002] The LCD screen is mainly composed of a backlight, a liquid crystal panel and a driving circuit. The backlight provides light to the liquid crystal panel, and the driving circuit adjusts the arrangement of liquid crystal molecules by controlling the voltage to control the propagation of light and thus realize image display. In some application scenarios, in order to meet the display needs at different angles, such as shopping mall guide displays and advertising displays, a double-sided LCD screen is set up to display images to people in different directions.

[0003] When performing double-sided display, one method is to set two liquid crystal screens back to back and connect and support them through a bracket in the middle. The prior art, such as a LED double-sided display disclosed in a patent document with publication number CN111911752A, sets a mounting bracket between the front display and the rear display. However, there is a large gap between the two display screens, resulting in a thicker overall thickness of the display screen. If the gap between the two display screens is small, it is not conducive to connecting the display screen to the mounting bracket. Summary of the invention

[0004] In order to facilitate the installation of a liquid crystal display screen and prevent the overall thickness of the liquid crystal display screen from being too thick, the present invention provides a double-sided liquid crystal display screen, which supports and connects two liquid crystal display screens through a combination of two different frames.

[0005] The technical objectives of the present invention are achieved through the following technical solutions:

[0006] A double-sided liquid crystal display screen, comprising:

[0007] A first frame component, a second frame component, and two liquid crystal display screens arranged back to back; the first frame component is arranged on two opposite sides of the liquid crystal display screen, and the second frame component is arranged on the other two opposite sides of the liquid crystal display screen;

[0008] The first frame assembly includes a first base and a first side plate;

[0009] The first base includes a first support plate and a box body arranged outside the first support plate, wherein the interior of the box body is hollow to form a wiring and component placement groove; two first side plates are respectively assembled and installed on the front and rear surfaces of the box body, and two first clamping spaces for clamping and supporting the edge of the liquid crystal display screen are respectively formed between the two first side plates and the first support plate;

[0010] The wiring and component placement groove is provided with an opening on the display surface of the liquid crystal display screen on the corresponding side, and the opening of the wiring and component placement groove is covered and blocked by the first side plate on the opening side;

[0011] The second frame assembly includes a second base body and a second side plate;

[0012] The second base comprises a second support plate, a connecting block arranged outside the second support plate, two second side plates respectively mounted on the front and rear surfaces of the connecting block, and two second clamping spaces for clamping and supporting the edge of the liquid crystal display screen are respectively formed between the two second side plates and the second support plate;

[0013] The liquid crystal display screen includes a light guide plate, an optical film, and a liquid crystal panel which are arranged in sequence. The liquid crystal panel is arranged parallel to the optical film and the light guide plate. The optical film is placed on the light guide plate. The edge of the optical film is aligned with the edge of the liquid crystal panel, and a flexible supporting sheet is arranged between the edge of the optical film and the edge of the liquid crystal panel.

[0014] Furthermore, the edge of the light guide plate extends and protrudes relative to the edge of the liquid crystal panel to form a step surface; a first clamping block is arranged inside the first clamping space corresponding to the edge of the display surface of the liquid crystal panel, and a second clamping block is arranged inside the first clamping space corresponding to the front side of the step surface; a third clamping block is also arranged in the first clamping space corresponding to the side of the liquid crystal panel;

[0015] A first clamping block is arranged on the inner side of the second clamping space corresponding to the edge of the display surface of the liquid crystal panel, and a second clamping block is arranged on the inner side of the second clamping space corresponding to the front side of the step surface; a third clamping block is also arranged on the side of the second clamping space corresponding to the liquid crystal panel;

[0016] The first clamping block, the second clamping block and the third clamping block are all flexible clamping blocks with elasticity. The clamping degree of the second clamping block clamping the light guide plate is greater than the clamping degree of the first clamping block clamping the liquid crystal panel.

[0017] Furthermore, an extension width of the box body outside the first clamping space is greater than an extension width of the connecting block outside the second clamping space.

[0018] Furthermore, the openings of the wiring and component placement grooves of the first frame components on opposite sides of the liquid crystal display screen are oriented in opposite directions.

[0019] Furthermore, a light bar is arranged on the side of the light guide plate in the first clamping space, the light bar of the light guide plate corresponding to one LCD screen is located in the first clamping space of the first frame assembly on one side of the LCD screen, and the light bar of the light guide plate corresponding to another LCD screen is located in the first clamping space of the first frame assembly on the other side of the LCD screen. The light bars corresponding to the light guide plates of the two LCD screens are arranged staggered, so that heat concentration can be avoided when the light bars are arranged on the same side of the LCD screen, and heat dissipation is facilitated.

[0020] Furthermore, an elastic support member is provided on the opposite side of the light guide plate to the light bar, and the elastic support member is provided in the first clamping space. The light bar is provided on one side of the light guide plate, and the elastic support member is supported on the other side of the light guide plate.

[0021] Furthermore, the box body is also equipped with a first edge sealing plate on the side opposite to the first supporting plate; the connecting block is also equipped with a second edge sealing plate on the side opposite to the second supporting plate.

[0022] Furthermore, the box body is provided with a circular lightening hole arranged along the length extension direction of the first base at one side close to the first edge sealing plate. The lightening hole is used to make a threaded hole at the end close to the length direction of the first base to install the lifting ring. The diameter of the lightening hole is set according to the bottom hole of the threaded hole to be hinged. The setting of the circular lightening hole provides basic adjustment for the hole making. Installing the lifting ring can facilitate the lifting and installation of the display through the lifting ring, which is more convenient when the bracket and base are installed on the outside later.

[0023] Furthermore, an aluminum foil is provided on the back of the light guide plate, the edges of the aluminum foil are bonded to the first support plate and the second support plate, and a reflective sheet is provided between the light guide plate and the aluminum foil.

[0024] Furthermore, the first side plate is provided with a limiting protrusion corresponding to the display surface of the liquid crystal panel for limiting the first clamping block, and the second side plate is provided with a limiting protrusion corresponding to the display surface of the liquid crystal panel for limiting the first clamping block.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. The present invention realizes the support and fixation of the two liquid crystal screens by enclosing the four sides of the two liquid crystal screens by the first frame component and the second frame component. The first frame component and the second frame component respectively support the two liquid crystal screens tightly and fix them through the first clamping space and the second clamping space. The two liquid crystal screens share the first frame component and the second frame component, so that the gap between the two liquid crystal screens is relatively small, thereby making the overall thickness of the liquid crystal screens relatively thin.

[0027] In addition, through the assembled installation of the first side panel and the second side panel, there is no need to perform related installation operations between the two liquid crystal display screens, which facilitates assembly operations when the overall thickness is relatively thin.

[0028] 2. The first clamping block and the second clamping block are set up, the light guide plate is clamped by the second clamping block, and the liquid crystal panel is clamped by the first clamping block. The second clamping block can concentrate the main force on the liquid crystal screen on the light guide plate, and play a role in fixing the light guide plate and limiting the warping of the light guide plate. The first clamping block plays an auxiliary fixing and supporting effect on the liquid crystal screen, which can ensure the clamping effect while preventing the liquid crystal panel from being subjected to excessive force, thereby avoiding damage caused by excessive stress concentration on the edge of the liquid crystal panel.

[0029] 3. Through the cooperation of the light bar and the elastic support, the light bar can be as close to the light guide plate as possible, reducing the loss of light effect, so that the light effect can be transmitted to the light guide plate as much as possible; and because the light guide plate may expand and contract due to changes in humidity and temperature and expand due to water absorption during use, the setting of the elastic support can provide deformation space margin for the thermal expansion and contraction of the light guide plate, thereby ensuring that the light bar fits the light guide plate and preventing the thermal expansion and contraction of the light guide plate from damaging the light bar.

[0030] 4. By setting the aluminum foil on the back of the light guide plate, the metal thermal conductivity of the aluminum foil can be used to dissipate heat, and it can also support the reflective sheet. Compared with the existing support of the reflective sheet by the plate structure, the overall thickness of the display is further reduced.

[0031] 5. Through the design of the first frame component and the second frame component, the heat dissipation of the backlight strip can also be enhanced, the stability of the LCD screen during use is improved, and it helps to improve the energy efficiency of the LCD screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the structure of a double-sided liquid crystal display screen in Example 1 of the present invention.

[0033] Figure 2 This is a schematic diagram of the first clamping space clamping the liquid crystal panel in Example 1 of the present invention.

[0034] Figure 3 1 is a schematic diagram of a second clamping space clamping a liquid crystal panel in an embodiment of the present invention.

[0035] Figure 4 It is a cross-sectional schematic diagram of the first frame assembly in Example 2 of the present invention.

[0036] Figure 5 It is a cross-sectional schematic diagram of the second frame assembly in Example 2 of the present invention.

[0037] Figure 6 It is a schematic diagram of the first frame assembly clamping the liquid crystal display screen in Example 2 of the present invention.

[0038] Figure 7 It is a schematic diagram of the second frame assembly clamping the liquid crystal display screen in Example 2 of the present invention.

[0039] Figure 8 It is a schematic diagram of the arrangement of light strips and elastic support members on both sides of the same light guide plate in Example 2 of the present invention.

[0040] Fig. 9 It is a schematic diagram of the structure of the liquid crystal display screen in Example 2 of the present invention.

[0041] Fig.10 It is a schematic diagram of cutting the first support plate of the first frame assembly in Embodiment 2 of the present invention.

[0042] Fig.11 It is a cross-sectional view of the first frame assembly and the second frame assembly after being spliced ​​together in Example 2 of the present invention.

[0043] In the figure:

[0044] 1. First frame component; 2. Second frame component; 3. Liquid crystal display screen;

[0045] 101, first base; 102, first side plate; 103, first clamping space; 104, wiring and component placement groove; 105, first support plate; 106, box body; 107, first edge plate; 108, first clamping block; 109, first clamping slot; 110, second clamping slot; 111, second clamping block; 112, lightening hole; 113, slot body; 114, first clamping block; 115, second clamping block; 116, third clamping block; 117, light bar; 118, elastic support member; 119, limiting protrusion;

[0046] 201, second base; 202, second side plate; 203, second clamping space; 204, second support plate; 205, connecting block; 206, second edge plate; 207, third clamping slot; 208, third clamping block; 209, fourth clamping slot; 210, fourth clamping block; 211, first clamping block; 212, second clamping block; 213, third clamping block; 214, limiting protrusion; 215, round hole;

[0047] 301, light guide plate; 302, liquid crystal panel; 303, optical film; 304, flexible support sheet; 305, aluminum foil; 306, reflective sheet. DETAILED DESCRIPTION

[0048] The technical solution of the present invention is further described below in conjunction with specific embodiments: Example 1

[0049] A double-sided liquid crystal display, such as Figure 1 As shown, including:

[0050] A first frame component 1, a second frame component 2, and two liquid crystal display screens 3 arranged back to back; the first frame component 1 is arranged on two opposite sides of the liquid crystal display screen 3, and the second frame component 2 is arranged on the other two opposite sides of the liquid crystal display screen 2; in this embodiment, the first frame component 1 is located on the left and right sides of the liquid crystal display screen 3, and the second frame component 2 is located on the upper and lower sides of the liquid crystal display screen 3.

[0051] Specifically, Figure 2 As shown, for the convenience of assembly, the first frame assembly 1 includes a first base 101, a first side panel 102 assembled on both sides of the thickness of the first base 101, and a first clamping space 103 is formed between the first side panel 102 and the first base 101; the first side panel 102 can be assembled and connected to the first base 101 by screws.

[0052] like Figure 3 As shown, the second frame assembly 2 includes a second base 201 and second side panels 202 assembled on both sides of the thickness of the second base 201, and a second clamping space 203 is formed between the second side panels 202 and the second base 201; the second side panels 202 can be assembled and connected to the second base 201 by screws.

[0053] The first clamping space 103 and the second clamping space 203 respectively clamp and support the edge of the liquid crystal display screen 3 .

[0054] Preferably, the extension width of the first frame component 1 outside the first clamping space 103 is greater than the extension width of the second frame component 2 outside the second clamping space 203. The outside of the first clamping space 103 refers to a direction parallel to the display screen and perpendicular to the length of the first frame component, and the outside of the second clamping space 203 refers to a direction parallel to the display screen and perpendicular to the length of the second frame component. Figure 1 As shown, the first frame component 1 is provided with a wiring and component placement groove 104 within the extended width range outside the first clamping space 103, and the wiring and component placement groove 104 is provided with an opening relative to the display surface of the liquid crystal display screen on one side. The two first side panels 102 of the first frame component 1 are respectively arranged on the opening side of the wiring and component placement groove 104 and on the outside of the bottom of the wiring and component placement groove 104, and the opening of the wiring and component placement groove 104 is covered and blocked by the first side panel 102 on the opening side of the wiring and component placement groove.

[0055] The wiring and component placement groove is opened toward the display surface of the display screen on one side, so that the thickness space of the first substrate is fully utilized. This asymmetric design can expand the wiring and component placement groove as much as possible without ensuring the structural strength. The wiring and component placement groove is used to place the control board, backlight power line, and LVDS FFC line of the liquid crystal panel.

[0056] Preferably, in order to facilitate the subsequent cable arrangement, the cables include the light bar power supply cable arrangement, the LCD display driving circuit arrangement, etc., and the openings of the wiring and component placement slots 104 of the first frame components 1 on opposite sides of the LCD display 3 are oriented in opposite directions. Of course, the opening directions of the wiring and component placement slots 104 of the two first frame components 1 can also be set in the same direction. The side walls of the wiring and component placement slots can be opened for threading, and the wiring can also be realized into the wiring and component placement slots 104 through the ends of the wiring and component placement slots 104 extending in the direction. Example 2

[0057] A double-sided liquid crystal display screen, the first frame component 1 is as follows Figure 4 As shown, the first substrate 101 includes a first support plate 105 and a box body 106 arranged on the outside of the first support plate 105. The inside of the box body 106 is hollow to form a wiring and component placement groove 104, and an opening is set on the liquid crystal display screen on one side of the box body 106; the first side plate 102 is assembled and installed on the front and back sides of the box body 106, and a first clamping space 103 is formed between the first side plate 102 and the first support plate 105; the box body is also assembled and installed with a first edge sealing plate 107 on the side opposite to the connection position with the first support plate 105; the extension width of the box body 106 outside the first clamping space 103 is greater than the extension width of the connecting block 205 outside the second clamping space 203.

[0058] The first side panel 102 and the first edge sealing panel 107 can be assembled and fixed by screws as in the embodiment. This embodiment provides another assembly method. The first side panel 102 corresponding to the front and rear positions of one side of the box body connected to the first support plate 105 is respectively provided with a first clamping block 108, and the first side panel 102 is provided with a first clamping groove 109 corresponding to the first clamping block 108. The first clamping block 108 and the first clamping groove 109 are respectively extended along the length direction of the first frame component, and the first clamping block 108 and the first clamping groove 109 are interlocked to realize the assembly and installation of the first side panel 102.

[0059] A second slot 110 is provided on the opposite side of the connection position between the box body 106 and the first support plate 105, and a second block 111 is provided on the first edge sealing plate 107 corresponding to the second slot 110. The second slot 110 is a slot with a circular arc surface, and the arc length of the arc surface of the center of the second slot is greater than 1 / 2 of the circumference. The second block 111 cooperates with the second slot 110 to set a circular arc surface. The cooperation between the second block 111 and the second slot 110 enables the first edge sealing plate 107 to be assembled and installed on the side of the box body 106. The second slot 110 and the second block 111 are respectively extended along the length direction of the first frame assembly 1. During assembly, the second block 111 of the first edge sealing plate 107 is inserted from the end of the second slot 110, so that the first edge sealing plate 107 can be installed and fixed even without installing screws.

[0060] The second matrix Figure 5 As shown, it includes a second support plate 204, a connecting block 205 arranged on the outside of the second support plate 204, a second side plate 202 is assembled and installed on the front and rear surfaces of the connecting block 205, a second clamping space 203 is formed between the second side plate 202 and the second support plate 204, and the connecting block 205 is also assembled and installed with a second edge sealing plate 206 on the side opposite to the connection position with the second support plate 204.

[0061] The second side panel 202 and the connecting block 205 can be connected by screws. The present embodiment provides another method. The connecting block 205 is provided with third slots 207 corresponding to the second side panels 202 on the front and rear sides at a position close to the second edge sealing plate. The second side panel 202 is provided with a third clip block 208 corresponding to the third slot 207. The third slot 207 and the third clip block 208 are respectively extended along the length direction of the second frame assembly 2. The second side panel 202 is assembled and installed by the third clip block 208 and the third slot 207 being interlocked with each other.

[0062] The second edge sealing plate 206 can be assembled and installed in the same manner as the first edge sealing plate 107. A fourth slot 209 is provided on the side opposite to the connecting block 205 where the second supporting plate 204 is connected. A fourth block 210 is provided on the second edge sealing plate 206 corresponding to the fourth slot 209. The fourth slot 209 is a slot having a circular arc surface. The fourth block 210 cooperates with the fourth slot 209 to provide a circular arc surface. The cooperation between the fourth block 210 and the fourth slot 209 enables the second edge sealing plate 206 to be assembled and installed on the side of the connecting block 205.

[0063] The first edge sealing plate 107 can also limit the first side plate 102 , and the second edge sealing plate 206 can limit the second side plate 202 .

[0064] Preferably, the box body 106 is further provided with a lightening hole 112 at the center of a circle extending along the length direction of the first substrate 101 on one side close to the first edge sealing plate. Figure 1 In the height direction, the lightening hole 112 is used to make a threaded hole near the end of the length direction of the first substrate to install a lifting ring. The lifting ring is a lifting ring with an external thread end. The diameter of the lightening hole 112 is processed according to the diameter of the bottom hole of the threaded hole to be hinged, which can not only reduce the weight, but also facilitate the subsequent reaming process. The setting of the lifting ring can facilitate the lifting during the installation of the display screen.

[0065] Preferably, the box body 106 is provided with a groove body 113 corresponding to the first side plate 102 on the back side of the wiring and component placement groove 104 to reduce the assembly friction when the first side plate 102 is installed on the back side of the wiring and component placement groove 104 of the box body. Due to the setting of the L-shaped first clamping block 108 and the first clamping groove 109, it is necessary to insert the first clamping block 108 into the first clamping groove 109 along one end of the first base of the first side plate 102. The larger the contact area, the greater the friction. The setting of the groove body 113 can not only reduce the contact area, facilitate assembly, and reduce the assembly difficulties caused by manufacturing tolerances, but also reduce the overall weight and save materials.

[0066] like Figure 6 and Figure 7 As shown, when the liquid crystal display screen is installed, the liquid crystal display screen 3 includes a light guide plate 301, an optical film 303 and a liquid crystal panel 302 which are arranged in sequence. The liquid crystal panel 302 is arranged parallel to the optical film 303 and the light guide plate 301. The optical film 303 is arranged in contact with a side of the light guide plate close to the liquid crystal panel 302. The optical film 303 is such as a diffusion film, a brightness enhancement film, or a polarized brightness enhancement film. The edge of the optical film 303 is aligned with the edge of the liquid crystal panel 303 and a flexible support sheet 304 is arranged between the edge of the optical film 303 and the edge of the liquid crystal panel 302. The flexible support sheet 304 is such as a rubber pad. The edge of the light guide plate 301 extends and protrudes relative to the edge of the liquid crystal panel 302 to form a step surface.

[0067] A first clamping block 114 is provided inside the first clamping space 103 corresponding to the edge of the display surface of the liquid crystal panel 302, a second clamping block 115 is provided inside the first clamping space 103 corresponding to the front side of the step surface, i.e., the front end surface of the light guide plate, and a third clamping block 116 is further provided inside the first clamping space 103 corresponding to the side edge of the liquid crystal panel 302;

[0068] A first clamping block 211 is arranged inside the second clamping space 203 corresponding to the edge of the display surface of the liquid crystal panel 302, a second clamping block 212 is arranged inside the second clamping space 203 corresponding to the front side of the step surface, that is, the front end surface of the light guide plate, and a third clamping block 213 is arranged inside the second clamping space 203 corresponding to the side edge of the liquid crystal panel 302;

[0069] The first clamping block 114, the first clamping block 211, the second clamping block 115, the second clamping block 212, the third clamping block 116 and the third clamping block 213 are all flexible clamping blocks with elasticity, such as rubber buffer pads, sponge pads, leather materials, etc. It should be noted that the material mentioned here is at least the material in contact with the liquid crystal panel 302, the clamping degree of the second clamping block 115 clamping the light guide plate 301 is greater than the clamping degree of the first clamping block 114 clamping the liquid crystal panel 302, and the clamping degree of the second clamping block 212 clamping the light guide plate 301 is greater than the clamping degree of the first clamping block 211 clamping the liquid crystal panel 302. Since the hardness of the light guide plate 301 is greater than that of the liquid crystal panel 302, the light guide plate is mainly clamped by the second clamping blocks 115 and 212, and the liquid crystal panel 302 is auxiliary clamped by the first clamping blocks 114 and 211, so that the liquid crystal display screen can be clamped without causing damage to the liquid crystal panel.

[0070] As a preference, Fig. 9 As shown, an aluminum foil 305 is also provided on the back of the light guide plate, the edges of the aluminum foil 305 are bonded to the first support plate and the second support plate, and a reflective sheet 306 is provided between the light guide plate and the aluminum foil. The reflective sheet is a transparent sheet with a reflective effect, also called a reflective film, such as a common white polyester reflective film and an SKC white reflective film.

[0071] As a preference, Figure 4 and Figure 5 As shown, the first side plate 102 is further provided with a limiting protrusion 119 for limiting the first clamping block 114 on the display surface corresponding to the liquid crystal panel 302, and the second side plate 202 is further provided with a limiting protrusion 214 for limiting the first clamping block 211 on the display surface corresponding to the liquid crystal panel 302. The setting of the limiting protrusion 119 can prevent the first clamping block 114 from moving out of the first clamping space 103, and the setting of the limiting protrusion 214 can prevent the first clamping block 211 from moving out of the second clamping space 203.

[0072] A light bar 117 is arranged on the side of the light guide plate 301 in the first clamping space 103, such as an LED light bar. The light bar 117 of the light guide plate 301 corresponding to one liquid crystal display screen is located in the first clamping space 103 of the first frame component 1 on one side of the liquid crystal display screen, and the light bar of the light guide plate 301 corresponding to another liquid crystal display screen is located in the first clamping space 103 of the first frame component 1 on the other side of the liquid crystal display screen.

[0073] As a preference, Figure 8 As shown, an elastic support member 118 is also provided on the opposite side of the light guide plate 301 where the light bar 117 is provided. The elastic support member 118 is provided in the first clamping space 103. The light bar 117 is provided on one side of the light guide plate 301, and the elastic support member 118 is supported on the other side of the light guide plate 301. Figure 6 The light bar 117 and the elastic support member 118 shown in the figure are arranged on the sides of two different light guide plates 301. The elastic support member can be an elastic structure such as a rubber pad, a latex pad, etc., and can also be an elastic support structure with a spring.

[0074] In addition, after the first edge banding plate 107 and the second edge banding plate 206 are installed, screws or bolts are added for reinforcement. The first edge banding plate 107 and the second edge banding plate 206 are provided with an inner concave surface in the area facing outward. When the screws or bolts are subsequently installed, the ends of the screws or bolts will not protrude, and the countersunk hole processing can also be omitted.

[0075] Preferably, the parts of the first frame assembly and the second frame assembly are respectively processed by extrusion molding of aluminum profiles, aluminum alloy profiles, etc. and then assembled and installed.

[0076] During actual assembly, since the first frame assembly and the second frame assembly are separate from each other, they need to be connected together by screws or the like at the position where the first frame assembly and the second frame assembly are orthogonally connected.

[0077] This embodiment provides another method of assembling the first frame assembly and the second frame assembly without adding an additional connection structure, such as Fig.10 As shown, the first base 101 and the second base 201 are assembled and connected by cross-overlapping, specifically, the first support plate 105 of the first frame assembly 1 is cut off along the end of the first frame assembly, and the length of the cut off is at least equal to the width of the second support plate 204 extending out of the second clamping space 203, and when the first support plate 105 is cut off, the side wall of the connection between the box body and the first support plate 105 is cut off. More specifically, the first frame assembly and the second frame assembly have the same thickness, the thickness of the first support plate 105 is equal to the thickness of the second support plate 204, and one side of the first support plate 105 is flush with the bottom surface of the wiring and component placement groove 104.

[0078] Then, the second support plate 204 of the second frame assembly is inserted into the first clamping space in line with the cut end surface of the first support plate 105 and against the side wall of the wiring and component placement groove 104, and one side of the second support plate 204 is in line with the bottom surface of the wiring and component placement groove 104. Fig.11 As shown;

[0079] Preferably, a circular hole 215 is provided in the area where the second support plate 204 is inserted into the wiring and component placement groove 104, and a threaded hole is provided at the bottom of the wiring and component placement groove 104, and a screw is passed through the circular hole 215 of the second support plate and is threadedly connected with the threaded hole in the wiring and component placement groove. Fig.11 shown.

[0080] After the first base and the second base are assembled, the first side panel 102, the second side panel 202, the first edge panel 107, and the second edge panel 206 can be installed; the first edge panel 107 and the second edge panel 206 are installed at orthogonal ends, and the second block 111 of the first edge panel 107 and / or the fourth block 210 of the second edge panel 206 are cut off at the positions where there are cross-overs, such as Fig.11 As shown, the second block 111 is cut.

[0081] This embodiment is only a further explanation of the present invention, not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed, but as long as it is within the scope of the claims of the present invention, it will be protected by the patent law.

Claims

1. A double-sided liquid crystal display screen, characterized in that: include: A first frame component (1), a second frame component (2), and two liquid crystal display screens (3) arranged back to back; the first frame component (1) is arranged on two opposite sides of the liquid crystal display screen, and the second frame component (2) is arranged on two other opposite sides of the liquid crystal display screen; The first frame assembly (1) comprises a first base body (101) and a first side plate (102); The first base (101) comprises a first support plate (105) and a box body (106) arranged outside the first support plate (105); the interior of the box body (106) is hollow to form a wiring and component placement groove (104); two first side plates (102) are respectively mounted on the front and rear surfaces of the box body (106); two first clamping spaces (103) for clamping and supporting the edge of the liquid crystal display screen are respectively formed between the two first side plates (102) and the first support plate (105); The wiring and component placement groove (104) is provided with an opening on the display surface of the liquid crystal display screen on the corresponding side, and the opening of the wiring and component placement groove (104) is covered and blocked by the first side plate (102) on the opening side; The second frame assembly (2) comprises a second base body (201) and a second side plate (202); The second base (201) comprises a second support plate (204), a connecting block (205) arranged outside the second support plate (204), two second side plates (202) respectively mounted on the front and rear surfaces of the connecting block (205), and two second clamping spaces (203) for clamping and supporting the edge of the liquid crystal display screen are respectively formed between the two second side plates (202) and the second support plate (204); The liquid crystal display screen comprises a light guide plate (301), an optical film (303), and a liquid crystal panel (302) which are arranged in sequence; the liquid crystal panel (302) is arranged parallel to the optical film (303) and the light guide plate (301); the optical film (303) is placed on the light guide plate (301); the edge of the optical film (303) is aligned with the edge of the liquid crystal panel (302); and a flexible support sheet (304) is arranged between the edge of the optical film (303) and the edge of the liquid crystal panel (302).

2. A double-sided liquid crystal display according to claim 1, characterized in that: The edge of the light guide plate (301) extends and protrudes relative to the edge of the liquid crystal panel (302) to form a stepped surface; a first clamping block (114) is arranged on the inner side of the first clamping space (103) corresponding to the edge of the display surface of the liquid crystal panel (302), and a second clamping block (115) is arranged on the inner side of the first clamping space (103) corresponding to the front side of the stepped surface; and a third clamping block (116) is also arranged on the side of the first clamping space (103) corresponding to the liquid crystal panel (302); A first clamping block (211) is arranged on the inner side of the second clamping space (203) corresponding to the edge of the display surface of the liquid crystal panel (302), and a second clamping block (212) is arranged on the inner side of the second clamping space (203) corresponding to the front side of the step surface; a third clamping block (213) is also arranged on the side of the second clamping space (203) corresponding to the liquid crystal panel (302); The first clamping block (114, 211), the second clamping block (115, 212) and the third clamping block (116, 213) are all flexible clamping blocks with elasticity, and the clamping degree of the second clamping block (115, 212) for clamping the light guide plate (301) is greater than the clamping degree of the first clamping block (114, 211) for clamping the liquid crystal panel (302).

3. A double-sided liquid crystal display screen according to claim 1, characterized in that: The extension width of the box body (106) outside the first clamping space (103) is greater than the extension width of the connecting block (205) outside the second clamping space (203).

4. A double-sided liquid crystal display screen according to claim 3, characterized in that: The openings of the wiring and component placement grooves (104) of the first frame components on opposite sides of the liquid crystal display screen are oriented in opposite directions.

5. A double-sided liquid crystal display screen according to claim 1, characterized in that: A light bar (117) is arranged on the side of the light guide plate (301) in the first clamping space (103); the light bar (117) of the light guide plate (301) corresponding to one liquid crystal display screen is located in the first clamping space (103) of the first frame component (1) on one side of the liquid crystal display screen; and the light bar (117) of the light guide plate (301) corresponding to another liquid crystal display screen is located in the first clamping space (103) of the first frame component (1) on the other side of the liquid crystal display screen.

6. A double-sided liquid crystal display screen according to claim 5, characterized in that: An elastic support member (118) is also provided on the side of the light guide plate (301) opposite to the side where the light bar (117) is provided. The elastic support member (118) is provided in the first clamping space (103). The light bar (117) is provided on one side of the light guide plate (301), and the elastic support member (118) is supported on the other side of the light guide plate (301).

7. A double-sided liquid crystal display screen according to claim 1, characterized in that: The box body (106) is also equipped with a first edge sealing plate (107) on the side opposite to the first support plate (105); The connecting block (205) is also equipped with a second edge sealing plate (206) on the side opposite to the second supporting plate (204).

8. A double-sided liquid crystal display screen according to claim 7, characterized in that: The box body (106) is also provided with a circular lightening hole (112) on one side close to the first edge sealing plate (107) and arranged along the length extension direction of the first base body (101). The lightening hole (112) is used for forming a threaded hole at the end close to the length direction of the first base body (101) to install a lifting ring. The diameter of the lightening hole (112) is set according to the bottom hole of the threaded hole to be formed.

9. The double-sided liquid crystal display screen according to claim 1, characterized in that: An aluminum foil (305) is also provided on the back of the light guide plate (301), the edges of the aluminum foil (305) are bonded to the first support plate (105) and the second support plate (204), and a reflective sheet (306) is also provided between the light guide plate (301) and the aluminum foil (305).

10. A double-sided liquid crystal display screen according to claim 2, characterized in that: The first side plate (102) is further provided with a limiting protrusion (119) for limiting the first clamping block (114) on the display surface corresponding to the liquid crystal panel (302), and the second side plate (202) is further provided with a limiting protrusion (214) for limiting the first clamping block (211) on the display surface corresponding to the liquid crystal panel (302).

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