Lateral entrance type fourth edge liquid crystal module

Abstract

The utility model discloses a side-in type fourth edge liquid crystal module which comprises a diaphragm, a light guide plate, reflection paper, a back plate and a radiator which are arranged in an attached mode. The liquid crystal module further comprises a light bar, a cross beam and a light guide column, the light bar adheres to the radiator, the light guide column is fixedly connected with the cross beam, and the cross beam is fixedly connected with the back plate. The liquid crystal display panel is positioned on one side of the diaphragm; the light guide column is provided with a light inlet face and a light outlet face, the light inlet face is located on one side of the lamp strip, the light outlet face is located on one side of the light guide plate, lamp beads of the lamp strip emit light sources, light enters the light guide column through the light inlet face, and the light enters the light guide plate through the light outlet face after being totally reflected at least once in the light guide column. By changing the position of the light bar, the light guide column is not limited to one-time total reflection of light to the light guide plate, so that the light mixing distance is shortened, the size of the fourth frame is reduced, the appearance of a side-entry frameless television product is greatly improved, and the pursuit of consumers for aesthetic feeling is further improved.

Description

Technical Field

[0001] This utility model relates to the field of liquid crystal module technology, and more specifically, to a side-mounted fourth-side liquid crystal module. Background Technology

[0002] With the advancement of technology, the appearance of LCD TVs has been continuously improved, and borderless TVs have become the mainstream trend. The borderless design virtually eliminates visual interference, allowing for seamless integration with the surrounding environment and a superior viewing experience. This is especially suitable for users who seek immersive viewing and modern home aesthetics, achieving a minimalist appearance and immersive experience through technological innovation. Currently, edge-lit borderless TVs are limited to the top, left, and right sides being borderless, with a fourth side (bottom) having a bezel. Due to the limitations of the light mixing distance in traditional edge-lit LCD modules, to ensure uniform light mixing and the required propagation distance, the light strip is positioned on one side of the light guide plate and located in front of the back panel (e.g., ...). Figure 5 As shown (with the direction of the LCD screen as the front), a certain distance needs to be maintained between the light strip and the light guide plate, resulting in the decorative strip on the lower side still being very wide, which cannot meet consumers' ultimate pursuit of aesthetics. Utility Model Content

[0003] This invention overcomes the shortcomings of the prior art and provides an implementation method for a side-mounted fourth-side LCD module, which is expected to solve the problem that the fourth side of existing frameless LCD TVs is too wide and cannot meet consumers' aesthetic pursuit.

[0004] To solve the above-mentioned technical problems, one embodiment of this utility model adopts the following technical solution:

[0005] A side-lit fourth-side liquid crystal module includes a film, a light guide plate, reflective paper, a back plate, and a heat sink, which are sequentially bonded together. The liquid crystal module also includes a lamp strip, a crossbeam, and a light guide column. The lamp strip is bonded to the heat sink, the light guide column is fixedly connected to the crossbeam, and the crossbeam is fixedly connected to the back plate. It also includes a liquid crystal panel located on one side of the film. The light guide column has a light-inlet surface and a light-outlet surface. The light-inlet surface is located on one side of the lamp strip, and the light-outlet surface is located on one side of the light guide plate. The lamp beads of the lamp strip emit light sources, and the light enters the light guide column through the light-inlet surface. After undergoing at least one total internal reflection within the light guide column, the light enters the light guide plate through the light-outlet surface.

[0006] Furthermore: the adhesive end of the heat sink and the light strip has a vertically arranged bottom edge, which is perpendicular to the back plate, and the light strip is adhesive to one side of the bottom edge.

[0007] Furthermore, the light guide column also has a reflective surface, the light-incoming surface is perpendicular to the bottom edge of the heat sink, and the LED beads of the light strip are located on one side of the light-incoming surface.

[0008] Furthermore, the reflective surface forms a 45° angle with the light-incoming surface and the light-outgoing surface, respectively.

[0009] Furthermore: the light strip is attached to the back of the heat sink, and the light-inlet surface and the light-outlet surface of the light guide column are on the same plane.

[0010] Furthermore: the light guide column has a first reflective surface and a second reflective surface, the first reflective surface and the second reflective surface are at a 90° angle, and the first reflective surface and the second reflective surface are at a 45° angle with the light-inlet surface and the light-outlet surface, respectively.

[0011] Furthermore, the liquid crystal module also includes a pressure strip, which is a bent piece, with one end attached to the bottom end of the crossbeam and the other end attached to the upper surface of the film.

[0012] Furthermore, the liquid crystal panel is connected to the pressure strip via an adhesive.

[0013] Furthermore, the LCD module also includes a decorative strip and a back cover. One end of the decorative strip is attached to the LCD panel, and the other end is attached to the back cover.

[0014] Furthermore, the radiator, crossbeam, and back plate are fixedly connected by screws.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects: By changing the position of the light strip, the light guide column is not limited to a single total reflection of light to the light guide plate. The distance that needs to be maintained between the light strip and the light guide plate is achieved through total reflection, which shortens the light mixing distance in the direction of the ground. Under the premise of ensuring that there are no light shadows, the size of the fourth frame (ground frame) is reduced, and the size of the decorative strip is further reduced, which greatly improves the appearance of the side-lit frameless TV product and further enhances consumers' pursuit of aesthetics. Attached Figure Description

[0016] Figure 1 This is a cross-sectional schematic diagram of Embodiment 1 of the present invention;

[0017] Figure 2 This is a schematic diagram of light reflection in Embodiment 1 of this utility model;

[0018] Figure 3 This is a cross-sectional schematic diagram of Embodiment 2 of the present invention;

[0019] Figure 4 This is a schematic diagram of light reflection in Embodiment 2 of this utility model;

[0020] Figure 5 This is a schematic diagram of an existing LCD module;

[0021] The numbers in the diagram are as follows: 1. Back panel; 2. Heat sink; 3. Crossbeam; 4. LED strip; 5. Light guide column; 6. Light guide plate; 7. Reflective paper; 8. Film; 9. LCD panel; 10. Decorative strip; 11. Pressure strip; 12. Back cover; 13. Bottom edge; 14. Light-inlet surface; 15. Reflective surface; 16. Light-out surface; 17. First reflective surface; 18. Second reflective surface. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0023] In the embodiments, Figure 1 The LCD panel 9 shown is "top" and the back cover 12 is "bottom" to describe the position of each component structure. This position structure does not represent the product component placement orientation of the side-mounted fourth-side LCD module when in use by the user.

[0024] Example 1

[0025] like Figure 1 , Figure 2 As shown, a side-mounted fourth-side liquid crystal module includes, from top to bottom, a film 8, a light guide plate 6, a reflective paper 7, a back plate 1, and a heat sink 2, which are sequentially bonded together. The heat sink 2 and the back plate 1 are fixedly connected by screws. The back plate 1 serves as the supporting skeleton of the liquid crystal module, ensuring that the layers are tightly bonded to each other and preventing displacement or deformation of the layers. The heat sink 2 absorbs the heat generated by the electronic components during operation, ensuring stable operation of the equipment and extending its service life. The reflective paper 7 serves as a reflective substrate, reducing light loss and improving reflectivity. The light guide plate 6 converts point light sources into uniform surface light sources, improving optical efficiency. The film 8 further brightens the surface light source and diffuses its reflection.

[0026] The LCD module also includes a light strip 4, a crossbeam 3, and a light guide post 5. The light strip 4 is bonded to the heat sink 2, the light guide post 5 is fixedly connected to the crossbeam 3, and the crossbeam 3 is fixedly connected to the back plate 1. The bonding end between the heat sink 2 and the light strip 4 has a bottom edge 13, which is perpendicular to the back plate 1. The light strip 4 is bonded to one side of the bottom edge 13. The crossbeam 3 is a bent part, with one side fixedly connected to the back plate 1 by screws, and the other side located on the side of the light guide plate 6. The crossbeam 3 serves as a fixing accessory for the light guide post 5, supporting and positioning the light guide post 5. The light guide post 5 is a multi-faceted irregular part with a light-inlet surface 14, a reflective surface 15, and a light-outlet surface 16. The light-inlet surface 14 is bonded to the heat sink. The bottom edge 13 of the light strip 4 is perpendicular to the light source surface 14. The light beads of the light strip 4 are located on one side of the light-inlet surface 14. The reflective surface 15 forms a 45° angle with the light-inlet surface 14 and the light-outlet surface 16 respectively. The light-outlet surface 16 is located on one side of the light guide plate 6. When in use, the light beads of the light strip 4 emit light. The light enters the light guide column 5 through the light-inlet surface 14. The light is reflected by the reflective surface 15 to the light-outlet surface 16, and then enters the interior of the light guide plate 6 through the light-outlet surface 16. The light guide plate 6 converts the point light source into a uniform surface light source. The light emitted by the light beads is totally reflected by the light guide column 5, which shortens the light mixing distance in the direction of the fourth frame and reduces the size of the ground frame while ensuring that there are no light shadows or other problems.

[0027] The LCD module also includes a pressure strip 11, which is a bent piece. One end of the pressure strip is attached to the bottom end of the crossbeam 3, and the other end is attached to the upper surface of the diaphragm 8. The pressure strip 11 fixes and protects the diaphragm 8, light guide plate 6, and reflective paper 7, ensuring that the diaphragm 8, light guide plate 6, and reflective paper 7 are integrated with the back plate 1, preventing displacement due to vibration or external impact. The LCD module also includes an LCD panel 9, a decorative strip 10, and a back cover 12. The LCD panel 9 is connected to the pressure strip 11 by an adhesive. One end of the decorative strip 10 is attached to the LCD panel 9, and the other end is attached to the back cover 12. The end of the decorative strip 10 that is attached to the LCD panel 9 becomes the side frame in the finished product of the side-mounted fourth-side LCD module, which is visible to the user when using the product.

[0028] The assembly method of this utility model is as follows: The light strip 4 is pasted onto the bottom edge of the heat sink 2. The reflective paper 7, light guide plate 6, and diaphragm 8 are installed on one side of the back panel. The light guide post 5 is then pasted onto the crossbeam 3. The crossbeam 3 and heat sink 2 are fixedly connected to the other side of the back panel 1 with screws, so that the light-emitting surface 16 of the light guide post 5 corresponds to the light guide plate 6, and the light-incoming surface 14 corresponds to the lamp beads of the light strip 4. The pressure strip 11 is installed on the crossbeam 3. Then, the LCD panel 9 is installed on the pressure strip 11 using adhesive. Next, the decorative strip 10 is installed on the crossbeam 3. Finally, the rear... Cover 12 and decorative strip 10 are closed; when in use, the lamp beads of the light strip 4 emit light, the light enters the light guide column 5 through the light-inlet surface 14, the light is reflected by the reflective surface 15 to the light-outlet surface 16, and then enters the interior of the light guide plate 6 through the light-outlet surface 16. The light guide plate 6 converts the point light source into a uniform surface light source; the light emitted by the lamp beads is subjected to total internal reflection through the light guide column 5, shortening the light mixing distance in the direction of the fourth frame, reducing the size of the side frame while ensuring that there are no light shadows or other problems, thereby reducing the size of the fourth side and greatly improving the appearance of the side-lit frameless TV product.

[0029] Example 2

[0030] like Figure 3 , Figure 4 As shown, this embodiment is basically the same as embodiment 1, except that: in this embodiment, the heat sink 2 does not have a bottom edge 13, the light strip 4 is pasted on the back of the heat sink 2, the light-inlet surface 14 and the light-outlet surface 16 of the light guide column 5 are on the same plane, the light guide column 5 has a first reflective surface 17 and a second reflective surface 18, the first reflective surface 17 and the second reflective surface 18 form a 90° angle, and the first reflective surface 17 and the second reflective surface 18 form a 45° angle with the light-inlet surface 14 and the light-outlet surface 16 respectively; when in use, the lamp beads of the light strip 4 emit light, the light enters the light guide column 5 through the light-inlet surface 14, the light is reflected by the first reflective surface 17 to the second reflective surface 18, and then reflected to the light-outlet surface 16, the light enters the interior of the light guide plate 6 through the light-outlet surface 16, and the light guide plate 6 converts the point light source into a uniform surface light source. By using the light guide column 5 to perform two total internal reflections on the light emitted by the LED beads, the light mixing distance in the direction of the fourth bezel is shortened. This reduces the size of the side bezel while ensuring that there are no light shadows or other issues, thereby reducing the size of the fourth side and greatly improving the appearance of the side-lit bezelless TV product.

[0031] Although the present invention has been described herein with reference to illustrative embodiments, it should be understood that many other modifications and implementations can be devised by those skilled in the art, which will fall within the scope and spirit of the principles disclosed herein. More specifically, various variations and improvements can be made to the components and / or layout of the subject matter combination within the scope of the present application. Besides variations and improvements to the components and / or layout, other uses will be apparent to those skilled in the art.

Claims

1. A side-mounted fourth-side liquid crystal module, characterized in that: The system includes a diaphragm (8), a light guide plate (6), a reflective paper (7), a back plate (1), and a heat sink (2). The liquid crystal module also includes a light strip (4), a crossbeam (3), and a light guide column (5). The light strip (4) is bonded to the heat sink (2), the light guide column (5) is fixedly connected to the crossbeam (3), and the crossbeam (3) is fixedly connected to the back plate (1). The system also includes a liquid crystal panel (9), which is located on one side of the diaphragm (8). The light guide column (5) has a light-inlet surface (14) and a light-outlet surface (16). The light-inlet surface (14) is located on one side of the light strip (4), and the light-outlet surface (16) is located on one side of the light guide plate (6). The light beads of the light strip (4) emit light, and the light enters the light guide column (5) through the light-inlet surface (14). The light undergoes at least one total internal reflection in the light guide column (5) and then enters the light guide plate (6) through the light-outlet surface (16).

2. The side-mounted fourth-side liquid crystal module according to claim 1, characterized in that: The heat sink (2) and the light strip (4) have a bottom edge (13) at the adhesive end, which is perpendicular to the back plate (1), and the light strip (4) is adhesive to one side of the bottom edge (13).

3. The side-mounted fourth-side liquid crystal module according to claim 2, characterized in that: The light guide column (5) also has a reflective surface (15), the light-inlet surface (14) is perpendicular to the bottom edge (13) of the heat sink (2), and the lamp beads of the lamp strip (4) are located on one side of the light-inlet surface (14).

4. The side-mounted fourth-side liquid crystal module according to claim 3, characterized in that: The reflective surface (15) forms a 45° angle with the light-inlet surface (14) and the light-outlet surface (16), respectively.

5. The side-mounted fourth-side liquid crystal module according to claim 1, characterized in that: The light strip (4) is attached to the back of the heat sink (2), and the light-inlet surface (14) and light-outlet surface (16) of the light guide column (5) are on the same plane.

6. The side-mounted fourth-side liquid crystal module according to claim 5, characterized in that: The light guide column (5) has a first reflective surface (17) and a second reflective surface (18). The first reflective surface (17) and the second reflective surface (18) are at a 90° angle. The first reflective surface (17) and the second reflective surface (18) are at a 45° angle with the light-inlet surface (14) and the light-outlet surface (16), respectively.

7. The side-mounted fourth-side liquid crystal module according to any one of claims 1-6, characterized in that: The liquid crystal module also includes a pressure strip (11), which is a bent piece. One end of the pressure strip (11) is attached to the bottom end of the crossbeam (3), and the other end is attached to the upper surface of the film (8).

8. The side-mounted fourth-side liquid crystal module according to claim 7, characterized in that: The liquid crystal panel (9) is connected to the pressure strip (11) by an adhesive.

9. The side-mounted fourth-side liquid crystal module according to claim 7, characterized in that: The LCD module also includes a decorative strip (10) and a back cover (12). One end of the decorative strip (10) is attached to the LCD panel (9), and the other end is attached to the back cover (12).

10. The side-mounted fourth-side liquid crystal module according to claim 7, characterized in that: The radiator (2), the crossbeam (3), and the back plate (1) are fixedly connected by screws.

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