A symmetrical double-sided screen liquid crystal module structure

Abstract

The present invention discloses a symmetrical double-sided screen liquid crystal module structure, which relates to the technical field of liquid crystal display modules. It is provided with a supporting base and a frame structure, the frame structure constitutes the optical component cavity of the module assembly, the module assembly is sequentially provided with a display panel assembly, an optical film, a light guide plate, a reflective sheet and a back plate, and a light source assembly and a heat sink are also provided on the back plate, the heat sink is provided at the lower part of the back plate, a T-CON board, a COF assembly and an FFC cable are provided on the heat sink, and the COF assembly connects the module assembly with the T-CON board; a light source cover is provided on the outer side of the light source assembly, the upper part of the light source cover is fixedly connected to the light guide plate, the lower part of the light source cover is fixedly connected to the heat sink, the upper part of the light source cover is provided on the inner side of the display panel assembly, and a receiving cavity is provided between the display panel assembly, the light guide plate and the light source cover. The present invention achieves the effect of double-sided display by using two independent liquid crystal modules and then through the intermediate connection structure.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of liquid crystal display modules, and more specifically, to a symmetrical double-sided screen liquid crystal module structure. Background Art

[0002] As the LCD industry continues to mature, various LCD screen manufacturers continue to innovate their products to ensure product performance and meet different customer needs. The backlight module of the LCD is divided into different forms according to the different light input methods, but no matter which backlight module is used, only single-sided display can be achieved; and with the development of LCD devices, LCD devices are increasingly used in shopping malls, exhibitions and other places to convey information, and in order to enable the audience on both sides of the display device to receive the display information, the existing method is to simply combine two single-sided display devices, which will not only occupy a large space, but also cause energy waste, limiting the use of double-sided screens. Moreover, the existing double-sided screen LCD module has almost independent backlight states on both sides, and the structure is complex. The overall module structure is thick, and the module structure needs to be produced separately, thereby increasing the production cost of the enterprise. Summary of the invention

[0003] The present invention aims at solving the technical problems existing in the prior art and provides a symmetrical double-sided screen liquid crystal module structure.

[0004] In order to solve the above technical problems, the present invention is provided with a supporting base and a frame structure, the frame structure constitutes the optical component cavity of the module assembly, the module assembly is provided with a display panel assembly, an optical film, a light guide plate, a reflective sheet and a back plate in sequence, and a light source assembly and a heat sink are also provided on the back plate, the heat sink is provided at the lower part of the back plate, a T-CON board, a COF assembly and an FFC cable are provided on the heat sink, and the COF assembly connects the module assembly with the T-CON board; a light source cover is provided on the outer side of the light source assembly, the light source cover is an open plate structure provided with an accommodating space, the upper part of the light source cover is fixedly connected to the light guide plate, the lower part of the light source cover is fixedly connected to the heat sink, the upper part of the light source cover is provided on the inner side of the display panel assembly, and an accommodating cavity is provided between the display panel assembly, the light guide plate and the light source cover.

[0005] Preferably, the back panel is a convex plate-like structure, which is arranged in the middle of the module structure and serves as the basic frame of the module structure. The module structure is a symmetrical double-sided screen module structure, and the back panel is used as the axis of symmetry. The module structure is symmetrically arranged on both sides of the back panel, thereby realizing double-sided synchronous display.

[0006] Preferably, a group of independent module assemblies are arranged on each side of the back panel, the frame structure is arranged on the outer periphery of the module assembly, the frame structure is provided with a first U-shaped profile structure and a second profile structure, the first U-shaped profile structure is arranged on the outer side of the second profile structure, and the first U-shaped profile structure is arranged at the outermost side of the module assembly.

[0007] Preferably, the first U-shaped profile structure and the second profile structure are both long strip structures, and the first U-shaped profile structure is a U-shaped profile structure with a U-shaped inner cross-section, the two second profile structures arranged at the front and rear are both arranged on the inner side of the first U-shaped profile structure, and a edging structure is arranged on the outer side of the second profile structure and extends outward along the width direction; the outer side of the second profile structure is arranged flush with the outer side of the back panel, a second profile structure is arranged on both sides and the upper part of the back panel, and a corner plastic part is arranged at the position where the second profile structure arranged on the upper side of the back panel is connected to the second profile structures arranged on both sides, and the second profile structure is provided with a plurality of mounting holes that cooperate with the back panel.

[0008] Preferably, the light source assembly is arranged in a cavity formed between the back plate, the heat dissipation plate and the light source cover plate, the light source assembly is arranged along the length direction of the display panel assembly, and the light source assemblies arranged on both sides of the back plate are staggered in the cavities on both sides, and the light source assembly is arranged at the bottom of the light guide plate.

[0009] Preferably, the light source assembly is an LED light bar, on which a number of LED lamp beads are evenly distributed; the light source cover is arranged on the outside of the LED light bar, and the light source cover is a convex plate-shaped structure with a middle portion protruding upward.

[0010] Preferably, the display panel assembly is provided with a liquid crystal screen and a connector, the liquid crystal screen is connected to the COF through the connector, and further connected to the T-CON board; the optical film is arranged on the inner side of the liquid crystal screen and connected to the light guide plate arranged on the inner side, and a reflective sheet is arranged between the light guide plate and the back plate.

[0011] Preferably, a plurality of weight-reducing holes are provided on the back plate, and a plurality of tapping holes are provided around the periphery of the back plate, which are used as an assembly structure of the module structure, and the material of the back plate is aluminum.

[0012] Preferably, a decorative cover plate is provided on the bottom periphery of the module assembly, and the decorative cover plate is provided on the bottom outer side of the display panel assembly, and the COF assembly is provided on the inner side of the decorative cover plate, the decorative cover plate is composed of two parts with the same structure, and a square opening structure is provided on the bottom of the two decorative cover plates, the bottom end of the back plate passes through the square opening structure from top to bottom, both ends of the decorative cover plate are clamped and connected with the first U-shaped profile structure, and the decorative cover plate is provided at the bottom of the double-sided screen and connected to the supporting base.

[0013] Preferably, the support base is arranged at the bottom of the module assembly and connected to the bottom of the back plate and the T-CON board, and the module structure is provided with hanging mounting holes and vertical mounting holes.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The present invention has a simple structure. By arranging independent liquid crystal module structures on two sides and using a connecting structure in the middle and a symmetrical design on both sides, a double-sided display effect is achieved. The optical component cavity of the module is composed of a back plate arranged in the middle and a frame structure arranged at the periphery. Moreover, the material is mostly made of lightweight aluminum. The overall module structure is lighter in weight and thinner in thickness, thereby achieving a larger packaging volume and loading capacity. By using profile components, different appearances and colors can also be customized.

[0016] Moreover, the present invention shares the aluminum profile around the backlight, which can reduce the cost of opening a new mold, and the full series of sizes are universal; the double-sided backlight design can reduce the use of additional assembly parts of a separate module, reduce costs, and reduce production procedures. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the main structure of the present invention;

[0020] Figure 3 For the present invention Figure 2 Schematic diagram of the partial cross-sectional structure in the AA direction;

[0021] Figure 4 It is a structural schematic diagram of the module assembly of the present invention;

[0022] Figure 5 It is a partial cross-sectional structural schematic diagram of the frame structure of the present invention;

[0023] Figure 6 It is a structural schematic diagram of the corner plastic part of the present invention;

[0024] Figure 7 It is a structural schematic diagram of the decorative cover plate and the second profile structure of the present invention;

[0025] Figure 8 For the present invention Figure 7 Schematic diagram of the structure at B in the middle;

[0026] Fig. 9 It is a schematic structural diagram of the backplane of the present invention.

[0027] Explanation of symbols in the figure:

[0028] 1. Support base; 2. Frame structure; 21. First U-shaped profile structure; 22. Second profile structure; 23. Corner plastic parts; 3. Module assembly; 31. LCD screen; 32. Optical film; 33. Light guide plate; 34. Reflector; 4. Back plate; 41. Convex plate structure; 42. Weight reduction holes; 43. Tapping holes; 5. T-CON board; 6. COF assembly; 7. FFC cable; 8. Connector; 9. Heat sink; 10. Accommodating cavity; 11. LED light strip; 12. LED light strip cover; 13. Decorative cover. DETAILED DESCRIPTION

[0029] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0030] See also Figure 1-Figure 3 The present invention provides a symmetrical double-sided screen liquid crystal module structure, which is provided with a supporting base 1 and a frame structure 2, wherein the supporting base 1 is used to support the module structure, and the frame structure 2 forms an optical component cavity of a module assembly 3; a back plate 4 is provided in the middle of the module structure, and the back plate 4 is a convex plate-shaped structure vertically arranged, and the back plate 4 serves as the basic frame of the entire module structure, and a group of independent module assemblies 3 are respectively provided on the front and rear sides, and the module assemblies 3 are symmetrically arranged on both sides of the back plate 4 with the back plate 4 as the symmetry axis, so that the entire module structure is a symmetrical double-sided screen module structure, realizing the effect of double-sided synchronous display.

[0031] like Figure 4As shown, in this embodiment, the module assembly 3 is provided with a liquid crystal screen 31, an optical film 32, a light guide plate 33, and a reflective sheet 34 in sequence. A back plate 4 shared by the module assemblies 3 on both sides is provided on the inner side of the reflective sheet 34. The width of the liquid crystal screen 31 is smaller than the width of the back plate 4. The top of the liquid crystal screen 31 is arranged close to the top of the back plate 4, leaving a certain distance as the installation space of the frame structure 2; a T-CON board 5, a COF assembly 6 and an FFC cable 7 are arranged at the bottom of the liquid crystal screen 31. The COF assembly 6 connects the module assembly 3 with the T-CON board 5. The liquid crystal screen 31 is connected to the COF assembly 6 through a connector 8, and then connected to the T-CON board 5; heat sinks 9 are fixedly connected to both sides of the lower part of the back plate 4, and the T-CON board 5, the COF assembly 6 and the FFC cable 7 are all arranged on the outside of the heat sink 9. A gap is provided between the liquid crystal screen 31 and the optical film 32. The width of the optical film 32 is smaller than the width of the liquid crystal screen 31. The optical film 32 is fixedly connected to the light guide plate 33 provided inside. A reflective sheet 34 is provided between the light guide plate 33 and the back plate 4. The inner side of the reflective sheet 34 is connected to the back plate 4, and the outer side of the reflective sheet 34 is connected to the light guide plate 33. The reflective sheet 34 is used to reflect light incident from the light source assembly.

[0032] In this embodiment, the top of the heat sink 9 is provided with a convex plate structure extending outward, the convex plate structure on the top of the heat sink 9 is arranged at the bottom of the light guide plate 33 and forms a certain accommodation space with the bottom of the light guide plate 33, the light source assembly is arranged in the accommodation cavity 10 formed between the back plate 4, the top of the heat sink 9 and the bottom of the light guide plate 33, and the light source assembly is arranged along the length direction of the light guide plate 33. The light source assembly used in this embodiment is an LED light bar 11, the side of the LED light bar 11 is fixedly connected to the back plate 4, a number of LED lamp beads are evenly distributed on the LED light bar 11, the LED light bar 11 arranged on both sides of the back plate 4 is staggered and arranged in the accommodation cavity 10 on both sides, and an LED light bar cover is arranged on the outside of the LED light bar 11.

[0033] Furthermore, Figure 4 As shown, in this embodiment, the LED light strip cover 12 is an open convex plate-like structure with a bulge outward in the middle and a receiving space. The LED light strip cover 12 is arranged on the outer side of the upper part of the heat sink 9, and the convex plate structure on the top of the heat sink 9 is arranged on the inner side of the LED light strip cover 12; the upper part of the LED light strip cover 12 is arranged between the liquid crystal screen 31 and the light guide plate 33, and the lower part of the LED light strip cover 12 is fixedly connected to the heat sink 9.

[0034] In this embodiment, the support base 1 is arranged at the bottom of the module assembly 3 and is connected to the bottom of the back panel 4 and the T-CON board 5. A plurality of COF components 6 are arranged on the outside of the heat sink 9, which are evenly arranged and connected to the FFC cable 7 through the connector 8. The production cost is lower, the production procedures are reduced, the high integration of the panel is improved, and the panel is thinner.

[0035] In this embodiment, Figure 5 , Figure 6 As shown, the frame structure 2 is arranged at the outer periphery of the module assembly 3, and the frame structure 2 is provided with a first U-shaped profile structure 21 and a second profile structure 22. The first U-shaped profile structure 21 is arranged at the outer side of the second profile structure 22, and the first U-shaped profile structure 21 is arranged at the outermost side of the module assembly 3 to protect the module assembly 3. The first U-shaped profile structure 21 is an integrated structure composed of three long strip structures with a U-shaped inner cross-section. The three long strip structures form a U-shaped profile structure, and the second profile structures 22 arranged on both sides of the back plate 4 are arranged on the inner side of the first U-shaped profile structure 21. The second profile structure 22 is a long strip structure and a edging structure is arranged on the outer side of the second profile structure 22. The edging structure arranged on the second profile structure 22 extends outward along the width direction thereof. The outer sides of the second profile structures 22 arranged on both sides are arranged flush with the outer ends of the back panel 4. The left and right sides and the upper end of the back panel 4 are connected with a second profile structure 22. The connecting position between the second profile structure 22 arranged on the upper end of the back panel 4 and the second profile structures 22 arranged on both sides is connected with a corner plastic part 23 for protection.

[0036] Furthermore, in this embodiment, a plurality of mounting holes that cooperate with the back plate 4 are provided on the second profile structure 22 for fixedly connecting the second profile structure 22 to the back plate 4 .

[0037] In this embodiment, Figure 7 , Figure 8 As shown, a decorative cover plate 13 is provided at the bottom periphery of the module assembly 3, and the decorative cover plate 13 is provided at the bottom outer side of the liquid crystal screen 31, the upper parts of the COF assembly 6 and the heat sink 9 are both provided at the inner side of the decorative cover plate 13, and the bottom end of the frame structure 2 is also provided in the decorative cover plate 13; the decorative cover plate 13 is composed of two parts of the same structure, an opening structure is provided at the top, and a square opening structure is provided at the middle of the bottom of the two decorative cover plates 13, and the bottom ends of the back plate 4 and the heat sink 9 pass through the square opening structure from top to bottom. Both sides of the bottom end of the back plate 4 are provided with outwardly extending convex plate structures 41, the bottom end of the first U-shaped profile structure 21 is clamped on the outwardly extending convex plate structure 41 at the bottom of the back plate 4, and the outer end of the first U-shaped profile structure 21 is provided with a clamping notch, and the upper ends of both sides of the decorative cover plate 13 are clamped and connected with the clamping notches on the first U-shaped profile structure 21, and then reinforced by screws, so that the connection is more stable.

[0038] In this embodiment, Fig. 9 As shown, the raised portion on the back panel 4 is arranged at the bottom end of the back panel, and the bottom of the back panel 4 is connected to the supporting base 1; a plurality of weight-reducing holes 42 are provided on the back panel 4, and the weight-reducing holes 42 are square structures but not limited to square structures. The weight-reducing holes 42 can be adjusted in shape, and can be circular, diamond-shaped, trapezoidal or other irregular opening structures. The weight-reducing holes 42 are used to reduce the weight of the back panel 4 and achieve lightweight; and a plurality of tapping holes 43 of different sizes are provided around the back panel 4, which are used as assembly structures of the backlight module structures on both sides. The material of the back panel 4 is aluminum, which further reduces the overall weight of the module and reduces the production cost.

[0039] Furthermore, in this embodiment, the heat sink 9 and the frame structure 2 are made of aluminum, which is light and thin, has a stable material, is not easy to deform, and can reduce the weight of the module structure and reduce production costs.

[0040] In this embodiment, the overall thickness of the back panel 4 is relatively thin, about 2 mm. The back panel 4 is matched with the frame structure 2 arranged around it to form an optical component cavity for the module assemblies 3 on both sides. The upper edge is fixed to the LCD screen by double-sided foam glue, and the first U-shaped profile structure 21 is used on the outermost edge to protect the structures on both sides. Therefore, the thickness of the double-sided display of the entire display module can be easily achieved within 20 mm, achieving lightness and thinness, thereby obtaining a larger packaging volume and loading capacity; the overall structure is simple, and the aluminum profiles around the backlight are shared, which reduces the mold opening cost of new products. The full series of sizes are universal, and the double-sided backlight design can reduce the use of additional assembly parts for separate modules, saving costs.

[0041] Furthermore, in this embodiment, the module structure is provided with hanging installation holes and vertical installation holes, and the double-sided screen can realize a hanging or vertical indoor double-sided display advertising machine according to needs, which is suitable for many occasions.

[0042] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0043] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0044] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A symmetrical double-sided screen liquid crystal module structure, which is provided with a support base and a frame structure, wherein the frame structure constitutes an optical component cavity of the module assembly, characterized in that: The module assembly is provided with a display panel assembly, an optical film, a light guide plate, a reflective sheet and a back plate in sequence, and a light source assembly and a heat sink are also provided on the back plate, the heat sink is provided on the lower part of the back plate, a T-CON board, a COF assembly and an FFC cable are provided on the heat sink, and the COF assembly connects the module assembly with the T-CON board; a light source cover is provided on the outer side of the light source assembly, and the light source cover is an open plate structure provided with a receiving space, the upper part of the light source cover is fixedly connected to the light guide plate, the lower part of the light source cover is fixedly connected to the heat sink, the upper part of the light source cover is provided on the inner side of the display panel assembly, and a receiving cavity is provided between the display panel assembly, the light guide plate and the light source cover; The back plate is a convex plate-shaped structure, which is arranged in the middle of the module structure and serves as the basic frame of the module structure. The module structure is a symmetrical double-sided screen module structure, and the module structure is symmetrically arranged on both sides of the back plate with the back plate as the symmetry axis, thereby realizing double-sided synchronous display; A group of independent module components are respectively arranged on both sides of the back plate, the frame structure is arranged on the outer periphery of the module component, the frame structure is provided with a first U-shaped profile structure and a second profile structure, the first U-shaped profile structure is arranged on the outer side of the second profile structure, and the first U-shaped profile structure is arranged on the outermost side of the module component; The first U-shaped profile structure and the second profile structure are both long strip structures, and the first U-shaped profile structure is a U-shaped profile structure with a U-shaped inner cross-section, the two second profile structures arranged at the front and rear are both arranged at the inner side of the first U-shaped profile structure, and the outer side of the second profile structure is provided with an edge structure and extends outward along the width direction; the outer side of the second profile structure is arranged flush with the outer side of the back plate, a second profile structure is arranged on both sides and the upper part of the back plate, and a corner plastic part is arranged at the position where the second profile structure arranged on the upper side of the back plate is connected to the second profile structures arranged on both sides, and the second profile structure is provided with a plurality of mounting holes that are matched and connected to the back plate; A decorative cover plate is arranged on the outer periphery of the bottom of the module assembly, and the decorative cover plate is arranged on the outer side of the bottom of the display panel assembly, and the COF assembly is arranged on the inner side of the decorative cover plate, the decorative cover plate consists of two parts with the same structure, and a square opening structure is arranged on the bottom of the two decorative cover plates, the bottom end of the back plate passes through the square opening structure from top to bottom, both ends of the decorative cover plate are clamped and connected with the first U-shaped profile structure, and the decorative cover plate is arranged at the bottom of the double-sided screen and connected with the supporting base.

2. A symmetrical double-sided screen liquid crystal module structure according to claim 1, characterized in that: The light source assembly is arranged in a cavity formed among the back plate, the heat dissipation plate and the light source cover plate. The light source assembly is arranged along the length direction of the display panel assembly, and the light source assemblies arranged on both sides of the back plate are staggered in the cavities on both sides, and the light source assembly is arranged at the bottom of the light guide plate.

3. A symmetrical double-sided screen liquid crystal module structure according to claim 2, characterized in that: The light source assembly is an LED light bar, on which a number of LED lamp beads are evenly distributed; the light source cover is arranged on the outside of the LED light bar, and the light source cover is a convex plate-shaped structure with a middle portion protruding upward.

4. The symmetrical double-sided screen liquid crystal module structure according to claim 1, characterized in that: The display panel assembly is provided with a liquid crystal screen and a connector, wherein the liquid crystal screen is connected to the COF through the connector, and further connected to the T-CON board; the optical film is arranged on the inner side of the liquid crystal screen and connected to the light guide plate arranged on the inner side, and a reflective sheet is arranged between the light guide plate and the back plate.

5. The symmetrical double-sided screen liquid crystal module structure according to claim 1, characterized in that: The back plate is provided with a plurality of weight-reducing holes, and the periphery of the back plate is provided with a plurality of tapping holes, which are used as an assembly structure of a module structure. The back plate is made of aluminum.

6. A symmetrical double-sided screen liquid crystal module structure according to any one of claims 1 to 5, characterized in that: The support base is arranged at the bottom of the module assembly and connected to the bottom of the back plate and the T-CON board. The module structure is provided with hanging installation holes and vertical installation holes.

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