Duplex screen diaphragm fixing structure

Abstract

The utility model discloses a duplex screen diaphragm fixing structure which comprises a frame, a back plate, a light bar, a light guide diaphragm set, a light guide plate and a reflector plate, a shielding rod is arranged on the frame, a rib plate is arranged on the side, facing the frame, of the back plate, a plurality of bosses are arranged on the side, away from the back plate, of the rib plate at intervals, and when the back plate is clamped on the frame, the light bar is arranged on the light guide diaphragm set. The rib plate corresponds to the shielding rod, the number of the reflection pieces is two, the opposite ends of the two reflection pieces abut against the two sides of the rib plate respectively, the number of the light guide plates is two, the opposite ends of the two light guide plates abut against the two sides of the rib plate and are attached to the two reflection pieces respectively, and the light guide film set is provided with film holes. The boss penetrates through the diaphragm hole and abuts against the shielding rod. After the double screen is assembled, a shell does not need to be arranged to splice the two display screens, the cost is reduced, the production efficiency is improved, the rib plate and the boss on the back plate are used for positioning the light guide diaphragm group, the light guide plate and the reflector plate, and the stability of the whole structure of the manufactured double screen is better.

Description

Technical Field

[0001] The utility model relates to a dual-screen diaphragm fixing structure, belonging to the technical field of liquid crystal display. Background Art

[0002] With the continuous advancement of automobile intelligence and electrification, the number and size of in-vehicle displays are increasing. As a way to enhance the sense of technology and luxury in the cockpit, the dual-screen design has gradually become a standard configuration for mid-to-high-end models. This design not only improves the driver's visual experience, but also enhances the interactivity and information display capabilities in the car.

[0003] The current dual screen uses two independent display screens and a shell to splice the two display screens together to make it look like a single display screen. This type of dual screen has high cost, low production efficiency, and poor overall structural stability. Summary of the Invention

[0004] The purpose of the utility model is to provide a double screen diaphragm fixing structure to solve the technical defects of the prior art of high manufacturing cost, low production efficiency and poor stability of the double screen.

[0005] In order to solve the above problems, the technical solution adopted by the present invention is: a dual-screen diaphragm fixing structure, comprising a frame, a back panel, a light bar and a light guide diaphragm group, a light guide plate and a reflective sheet pressed into the frame by the back panel, the light bar is fixed at the edge of the back panel, the back panel is fixedly connected to the frame, the frame is rectangular, and a shielding rod is provided on the frame, which divides the frame into two rectangular areas on the left and right. A rib plate is provided on the side of the back panel facing the frame, and a plurality of bosses are provided at intervals on the side of the rib plate away from the back panel. When the back panel is engaged with the frame, the rib plate corresponds to the shielding rod, the number of reflective sheets is two, and the facing ends of the two reflective sheets respectively abut the two sides of the rib plate and fit with the back panel. The number of light guide plates is two, and the facing ends of the two light guide plates abut the two sides of the rib plate and fit with the two reflective sheets respectively. Diaphragm holes corresponding to the bosses are opened on the light guide diaphragm group, and the bosses pass through the diaphragm holes and abut against the shielding rod.

[0006] As a further improvement of the present invention, the sum of the thicknesses of the light guide plate and the reflective sheet is greater than or equal to the height of the rib plate, and the sum of the thicknesses of the light guide plate, the reflective sheet and the light guide film assembly is equal to the sum of the heights of the rib plate and the boss.

[0007] As a further improvement of the present invention, the four sides of the back panel are bent toward the frame to form side retaining walls, which extend into the frame for fixed connection with the frame. A plurality of retaining wall slots are provided on the side retaining walls, and a plurality of diaphragm hanging ears corresponding to the retaining wall slots are provided on the edge of the light-guiding diaphragm group. The diaphragm hanging ears are located in the retaining wall slots, and the light strip is fixed on the side surface of the side retaining wall close to the reflective sheet.

[0008] As a further improvement of the present invention, the light strip includes two parts located on both sides of the rib plate, and is adhered to the side retaining wall with heat-conducting adhesive.

[0009] As a further improvement of the present invention, a plurality of protrusions are provided on the surface of the side retaining wall away from the reflective sheet, and a card slot corresponding to the protrusion is opened on the frame. The protrusion and the card slot cooperate to clamp the back panel on the frame.

[0010] As a further improvement of the present invention, the reflective sheet is adhered to the back plate using double-sided tape.

[0011] As a further improvement of the present invention, the number of the light guide films is three, the three light guide films are stacked and two adjacent light guide films are bonded together.

[0012] To sum up, the beneficial effects of the present invention are as follows: the dual screen of the present invention shares a frame, a back panel and a light guide film group, and there is no need to set up a shell to splice the two display screens after assembly. Compared with the prior art, the present invention reduces the shell required for subsequent splicing, reduces the cost of the shell and the cost of splicing the two display screens with the shell, and improves production efficiency. The present invention sets ribs and bosses on the back panel to position the light guide film group, the light guide plate and the reflective sheet, and since the subsequent assembly of the shell is reduced, the overall structure of the dual screen made by the present application is also more stable.

[0013] In the present invention, the thickness of the light guide film group, the light guide plate and the reflective sheet is equal to the sum of the heights of the rib plate and the boss, so that the light guide film group, the light guide plate and the reflective sheet are clamped between the frame and the back plate, further improving the stability of the structure of the present invention and preventing the light guide film group, the light guide plate and the reflective sheet from shaking.

[0014] The utility model has side retaining walls bent at the edge of the back plate to facilitate fixation with the frame. The retaining wall slots on the side retaining walls cooperate with the diaphragm hanging ears on the light guide diaphragm group to limit and fix the light guide diaphragm group, further improving the stability of the structure of the utility model.

[0015] The light bar in this utility model consists of two parts, each illuminating the screen on either side of the shielding bar. This utility model utilizes protrusions on the side walls that mate with slots on the frame to facilitate secure mounting of the back panel to the frame. The reflective sheet in this utility model is affixed to the back panel, further enhancing overall stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional exploded schematic diagram of the present utility model.

[0017] Figure 2 It is a schematic diagram of the decomposition of the back plate and the reflective sheet in the present invention.

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the assembly of the back plate and the reflective sheet in the utility model.

[0019] Among them: 1. Frame; 2. Back panel; 3. Light bar; 4. Light guide film group; 5. Light guide plate; 6. Reflector; 7. Shielding rod; 8. Rib plate; 9. Protrusion; 10. Diaphragm hole; 11. Side retaining wall; 12. Retaining wall slot; 13. Diaphragm ear; 14. Thermal adhesive; 15. Protrusion; 16. Slot; 17. Light guide film. DETAILED DESCRIPTION

[0020] The specific implementation of the present invention will be further described below with reference to the accompanying drawings.

[0021] like Figures 1 to 3The double-screen diaphragm fixing structure shown includes a frame 1, a back panel 2, a light bar 3, and a light guide diaphragm group 4, a light guide plate 5 and a reflective sheet 6 that are pressed into the frame 1 by the back panel 2 and arranged in sequence from the frame 1 to the back panel 2. The light bar 3 is fixed at the edge of the back panel 2, and the back panel 2 is fixedly connected to the frame 1. The frame 1 is rectangular, and a shielding rod 7 is provided on the frame 1. The shielding rod 7 divides the frame 1 into two rectangular areas on the left and right, so that the entire frame 1 is in a "sun" shape. A rib plate 8 is provided on the side of the back panel 2 facing the frame 1. The thickness of the rib plate 8 is less than the width of the shielding rod 7. A plurality of bosses 9 are evenly spaced on the side of the rib plate 8 away from the back panel 2. The bosses 9 are rectangular. When the back panel 2 is engaged on the frame 1, the rib plate 8 corresponds to the shielding rod 7. Since the thickness of the rib plate 8 is less than the width of the shielding rod 7, Therefore, the blocking rod 7 can completely block the blocking rod 7 and the boss 9. In the utility model, there are two reflective sheets 6, and both reflective sheets 6 are of rectangular structure. The facing ends of the two reflective sheets 6 respectively press against the two sides of the rib plate 8 and fit with the back plate 2. The utility model fixes the reflective sheet 6 on the back plate 2. The reflective sheet 6 can be pasted on the back plate 2 with double-sided tape. The number of light guide plates 5 is also two. The facing ends of the two light guide plates 5 press against the two sides of the rib plate 8 and fit with the two reflective sheets 6 respectively. In the utility model, the lengths of the two light guide plates 5 are respectively equal to the lengths of the two reflective sheets 6. A diaphragm hole 10 corresponding to the boss 9 is provided on the light guide diaphragm group 4. The shape of the diaphragm hole 10 is the same as that of the boss 9. The boss 9 passes through the diaphragm hole 10 and presses against the blocking rod 7.

[0022] In the present invention, the sum of the thicknesses of the light guide plate 5 and the reflective sheet 6 is greater than or equal to the height of the rib plate 8. Optimally, the sum of the thicknesses of the light guide plate 5 and the reflective sheet 6 is set to be equal to the height of the rib plate 8. The sum of the thicknesses of the light guide plate 5, the reflective sheet 6 and the light guide film group 4 is equal to the sum of the heights of the rib plate 8 and the boss 9, that is, the thickness of the light guide film group 4 is equal to the height of the boss 9. In the present invention, the back plate 2 is placed horizontally, and the vertical dimensions of the rib plate 8 and the boss 9 are the heights of the rib plate 8 and the boss 9, respectively.

[0023] like Figure 2 and Figure 3As shown, the four sides of the back panel 2 in the present invention are bent toward the frame 1 to form side retaining walls 11, which are perpendicular to the back panel 2. The side retaining walls 11 extend into the frame 1 for fixed connection with the frame 1, and a plurality of retaining wall slots 12 are provided on the side retaining walls 11. The retaining wall slots 12 are rectangular slots, and a plurality of diaphragm hanging ears 13 corresponding to the retaining wall slots 12 are provided on the edge of the light-guiding diaphragm group 4. The diaphragm hanging ears 13 are rectangular and are arranged in the retaining wall slots 12. The light strip 3 is fixed on the side surface of the side retaining wall 11 close to the reflector 6. The light strip 3 in the utility model includes two parts located on both sides of the rib plate 8, and the light strip 3 is adhered to the side retaining wall 11 with a thermally conductive adhesive 14.

[0024] like Figure 1 As shown, the present invention is provided with a plurality of protrusions 15 on the surface of the side retaining wall 11 away from the reflective sheet 6, and a card slot 16 corresponding to the protrusion 15 is opened on the frame 1. The protrusion 15 and the card slot 16 are used to clamp the back panel 2 on the frame 1. In the present invention, the cross-sectional shape of each side of the frame 1 is L-shaped, and the card slot 16 is opened on the surface engaged with the protrusion 15, and the other side is used to block the edges of the light guide film group 4, the light guide plate 5 and the reflective sheet 6 to prevent them from detaching from the frame 1.

[0025] like Figure 1 As shown, the light-guiding film group 4 in the present invention includes three light-guiding films 17 of the same shape. The three light-guiding films 17 are all provided with film holes 10, and the film holes 10 on the three light-guiding films 17 correspond to each other. The three light-guiding films 17 are stacked and the two adjacent light-guiding films 17 are fitted together. In the present invention, a plurality of film hanging ears 13 are provided on the edge of each light-guiding film 17, and the positions and shapes of the film hanging ears 13 on the three light-guiding films 17 are the same.

[0026] Any portion of the above description not specifically described herein is prior art or can be implemented using prior art. Furthermore, the specific implementation examples described in this utility model are merely preferred implementation examples of this utility model and are not intended to limit the scope of this utility model. In other words, any equivalent variations and modifications made within the scope of this utility model should be considered within the technical scope of this utility model.

Claims

1. A dual-screen diaphragm fixing structure, comprising a frame (1), a back panel (2), a light bar (3), and a light guide diaphragm group (4), a light guide plate (5), and a reflective sheet (6) which are press-fitted into the frame (1) by the back panel (2) and arranged in sequence from the frame (1) to the back panel (2), the light bar (3) being fixed at the edge of the back panel (2), and the back panel (2) being fixedly connected to the frame (1), characterized in that: The frame (1) is rectangular, and a shielding rod (7) is provided on the frame (1), and the shielding rod (7) divides the frame (1) into two rectangular areas on the left and right. A rib plate (8) is provided on the side of the back plate (2) facing the frame (1), and a plurality of bosses (9) are provided on the side of the rib plate (8) away from the back plate (2). When the back plate (2) is engaged with the frame (1), the rib plate (8) corresponds to the shielding rod (7), and the number of the reflective sheets (6) is two. The two reflecting sheets (6) are provided with two light guide plates (5), one end of the two light guide plates (5) is against the two sides of the rib plate (8) and is respectively fitted with the back plate (2). The light guide film group (4) is provided with a film hole (10) corresponding to the boss (9), and the boss (9) passes through the film hole (10) and is fitted on the shielding rod (7).

2. The dual-screen diaphragm fixing structure according to claim 1, characterized in that: The sum of the thicknesses of the light guide plate (5) and the reflective sheet (6) is greater than or equal to the height of the rib plate (8), and the sum of the thicknesses of the light guide plate (5), the reflective sheet (6) and the light guide film assembly (4) is equal to the sum of the heights of the rib plate (8) and the boss (9).

3. The dual-screen diaphragm fixing structure according to claim 1, characterized in that: The four sides of the back panel (2) are bent toward the frame (1) to form side retaining walls (11), and the side retaining walls (11) extend into the frame (1) for fixed connection with the frame (1). A plurality of retaining wall slots (12) are provided on the side retaining walls (11), and a plurality of film hanging ears (13) corresponding to the retaining wall slots (12) are provided on the edge of the light guide film group (4). The film hanging ears (13) are located in the retaining wall slots (12), and the light bar (3) is fixed on a side surface of the side retaining wall (11) close to the reflective sheet (6).

4. The dual-screen diaphragm fixing structure according to claim 3, characterized in that: The light bar (3) comprises two parts located on both sides of the rib plate (8) and is adhered to the side retaining wall (11) using a heat-conducting adhesive (14).

5. The dual-screen diaphragm fixing structure according to claim 3, characterized in that: A plurality of protrusions (15) are provided on the surface of the side retaining wall (11) away from the reflective sheet (6), and a card slot (16) corresponding to the protrusion (15) is provided on the frame (1). The protrusion (15) and the card slot (16) cooperate to clamp the back panel (2) on the frame (1).

6. The dual-screen diaphragm fixing structure according to claim 1, characterized in that: The reflective sheet (6) is adhered to the back plate (2) using double-sided adhesive tape.

7. The dual-screen diaphragm fixing structure according to claim 1, characterized in that: The light guide film group (4) comprises three light guide films (17), the three light guide films (17) are stacked, and two adjacent light guide films (17) are bonded together.

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