Light guide module for reflective liquid crystal display

Abstract

The utility model discloses a light guide module for a reflective liquid crystal display, and relates to the technical field of light guide of the reflective liquid crystal display. The light guide unit is arranged on the outer surface of the mounting unit and is used for mounting; the light film assembly is arranged in the light guide unit and used for guiding light, and the installation unit comprises an installation assembly arranged on the outer surface of the installation unit. The light guide unit can be conveniently installed and fixed through mutual cooperation of the installation support plate, the limiting spring columns, the L-shaped plates and the threaded fixing bolts, the light film assembly can be conveniently installed and fixed through mutual cooperation of the light guide installation frame, the annular cooling fins, the cooling copper pipes and the LED lamp strips, and meanwhile in the working process of the light film assembly, the light film assembly can be conveniently installed and fixed. The LED light bar is used for supplementing light, the reflecting film, the light guide plate, the diffusion film and the prism film are matched with one another, so that a light source can be reinforced and reflected conveniently, and the light guide effect of the light guide module in the using process is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of light guide of a reflective liquid crystal display, in particular to a light guide module for a reflective liquid crystal display. Background Art

[0002] In today's various consumer electronic books or electronic paper product markets, reflective display devices are mainly used to display images, and the display purpose is achieved by using incident light from above to illuminate the display interface.

[0003] In the prior art, a patent document with publication number CN218383569U proposes a reflective backlight module for a liquid crystal display, which relates to the technical field of liquid crystal displays and solves the problem of insufficient brightness of the reflective backlight module. The reflective backlight module of the liquid crystal display of the utility model includes a light guide plate, a light bar, a reflective sheet attached to the back of the light guide plate and reflective sheets on three sides, a light bar power supply interface, and a light reflector. An elliptical curved surface with a cross section of an elliptical arc is provided in the groove of the light reflector as a reflective surface. The inner surface of the light reflector, i.e., the groove, is coated with a reflective coating or a reflective film. The major axis of the ellipse where the elliptical arc is located is perpendicular to the light emitting surface of the light guide plate. The light bar is placed on the outside of the reflective sheet on the back of the light guide plate. The light bar is placed in such a way that the light emitted by the light bar is opposite to the light incident surface of the light guide plate.

[0004] In order to solve the problem that the existing light guide module is not designed with an elliptical curved surface light reflector with an elliptical arc cross section, most of the light emitted by the light bar cannot enter the light guide plate after one reflection, resulting in low energy efficiency, the existing technology adopts a method of improving the light utilization efficiency of the reflective backlight module and improving the brightness of the reflective backlight module by setting a light reflector with an elliptical cross section. However, the backlight module may be inconvenient to install during use, which leads to a reduction in the practicability of the reflective module. Utility Model Content

[0005] The purpose of the utility model is to provide a light guide module for a reflective liquid crystal display to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A light guide module for a reflective liquid crystal display comprises a mounting unit; a light guide unit disposed on the outer surface of the mounting unit for mounting; and a light film assembly disposed inside the light guide unit for guiding light, wherein the mounting unit comprises a mounting assembly disposed on the outer surface of the mounting unit and a snap-on assembly disposed on the outer surface of the mounting assembly, and the light guide unit comprises a fill light assembly disposed on the outer surface of the mounting unit and a heat dissipation assembly disposed on the outer surface of the fill light assembly.

[0008] A further improvement of the technical solution of the utility model is that: the installation component includes a mounting bracket plate, the outer surface of the mounting bracket plate is provided with a limiting spring column, and the outer surface of the mounting bracket plate is provided with a groove.

[0009] A further improvement of the technical solution of the utility model is that the clamping assembly includes an L-shaped plate, the outer surface of the L-shaped plate is rotatably connected to the inner wall of the groove, and the outer surface of the L-shaped plate is threadedly connected to a threaded fixing bolt.

[0010] By adopting the above technical solution, the light guide unit can be easily installed and fixed by the cooperation of the mounting bracket plate, the limiting spring column, the L-shaped plate and the threaded fixing bolt, thereby increasing the functionality of the light guide module of the reflective liquid crystal display.

[0011] A further improvement of the technical solution of the utility model is that the fill light assembly includes a light guide mounting frame, the outer surface of the light guide mounting frame is provided with a positioning groove, the inner wall of the light guide mounting frame is provided with a mounting groove, and the inner wall of the mounting groove is fixedly connected with an LED light strip.

[0012] A further improvement of the technical solution of the utility model is that the heat dissipation component includes an annular heat sink, the outer surface of the annular heat sink is fixedly connected to the inner wall of the light guide installation frame, and the inner wall of the annular heat sink is fixedly connected to a heat dissipation copper tube.

[0013] By adopting the above technical solution, the light guide installation frame, the annular heat sink, the heat dissipation copper tube and the LED light strip cooperate with each other to facilitate the installation and fixation of the light film assembly. At the same time, the LED light strip is used for supplementary lighting during the operation of the light film assembly.

[0014] A further improvement of the technical solution of the utility model is that: the optical film assembly includes a reflective film, a light guide plate is arranged on one side of the reflective film, and the outer surface of the light guide plate is fixedly connected to the inner wall of the light guide installation frame.

[0015] A further improvement of the technical solution of the utility model is that: a diffusion film is arranged on the other side of the light guide plate, and a prism film is arranged on the other side of the diffusion film.

[0016] By adopting the above technical solution, the cooperation of the reflective film, the light guide plate, the diffusion film and the prism film can conveniently strengthen and reflect the light source, thereby improving the light guiding effect of the light guide module during use.

[0017] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0018] 1. The utility model provides a light guide module for a reflective liquid crystal display. The light guide unit can be conveniently installed and fixed by using a mounting bracket plate, a limit spring column, an L-shaped plate and a threaded fixing bolt, thereby increasing the functionality of the light guide module of the reflective liquid crystal display.

[0019] 2. The utility model provides a light guide module for a reflective liquid crystal display. The light guide installation frame, the annular heat sink, the heat dissipation copper tube and the LED light strip cooperate with each other to facilitate the installation and fixation of the light film assembly. At the same time, during the operation of the light film assembly, the LED light strip is used for fill light, thereby increasing the practicality of the light guide module of the reflective liquid crystal display.

[0020] 3. The utility model provides a light guide module for a reflective liquid crystal display, which uses a reflective film, a light guide plate, a diffusion film and a prism film to cooperate with each other to conveniently strengthen and reflect the light source, thereby improving the light guide effect of the light guide module during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the installation unit structure of the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the light guide unit of the utility model;

[0024] Figure 4 For the utility model Figure 3 A magnified schematic diagram of point A;

[0025] Figure 5 This is a schematic diagram of the structure of the optical film assembly of the utility model.

[0026] In the figure: 1. Installation unit; 11. Installation bracket plate; 111. Groove; 12. Limit spring column; 13. L-shaped plate; 14. Threaded fixing bolt; 2. Light guide unit; 21. Light guide installation frame; 211. Installation groove; 212. Positioning groove; 22. Ring heat sink; 23. Heat dissipation copper tube; 24. LED light strip; 3. Light film assembly; 31. Reflective film; 32. Light guide plate; 33. Diffusion film; 34. Prism film. DETAILED DESCRIPTION

[0027] The present invention is further described in detail below in conjunction with the embodiments:

[0028] Example 1

[0029] like Figure 1-5As shown, the utility model provides a light guide module for a reflective liquid crystal display, including a mounting unit 1; a light guide unit 2 arranged on the outer surface of the mounting unit 1 for mounting; and a light film assembly 3 arranged inside the light guide unit 2 for guiding light, wherein the mounting unit 1 includes a mounting assembly arranged on the outer surface of the mounting unit 1 and a clamping assembly arranged on the outer surface of the mounting assembly, the light guide unit 2 includes a fill light assembly arranged on the outer surface of the mounting unit 1 and a heat dissipation assembly arranged on the outer surface of the fill light assembly, the mounting assembly includes a mounting bracket plate 11, a limit spring column 12 is arranged on the outer surface of the mounting bracket plate 11, and the outer surface of the mounting bracket plate 11 A groove 111 is provided on the surface, and the snap-on assembly includes an L-shaped plate 13. The outer surface of the L-shaped plate 13 is rotatably connected to the inner wall of the groove 111. The outer surface of the L-shaped plate 13 is threadedly connected to a threaded fixing bolt 14. When using the light guide module of the reflective liquid crystal display, the mounting bracket plate 11 is first installed inside the display. Then, when the light guide unit 2 needs to be installed, the light guide unit 2 is aligned with one side of the limiting spring column 12, and then the L-shaped plate 13 is turned over, and the angle of the L-shaped plate 13 is adjusted. After adjusting to a suitable angle, the light guide unit 2 is fixed by rotating the threaded fixing bolt 14, thereby completing the installation of the light guide unit 2.

[0030] Example 2

[0031] like Figure 1-5 As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, the fill light component includes a light guide mounting frame 21, the outer surface of the light guide mounting frame 21 is provided with a positioning groove 212, the inner wall of the light guide mounting frame 21 is provided with a mounting groove 211, the inner wall of the mounting groove 211 is fixedly connected with an LED light strip 24, the heat dissipation component includes an annular heat sink 22, the outer surface of the annular heat sink 22 is fixedly connected to the inner wall of the light guide mounting frame 21, the inner wall of the annular heat sink 22 is fixedly connected with a heat dissipation copper tube 23, in the process of using the light guide module of the reflective liquid crystal display, heat will be generated, and the cooperation between the annular heat sink 22 and the heat dissipation copper tube 23 can conveniently assist in dissipating the heat of the outer surface of the light guide mounting frame 21, and in the working process of the optical film component 3, the LED light strip 24 can be used to cooperate with the optical film component 3 for fill light.

[0032] Example 3

[0033] like Figure 1-5As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, the optical film assembly 3 includes a reflective film 31, a light guide plate 32 is arranged on one side of the reflective film 31, the outer surface of the light guide plate 32 is fixedly connected to the inner wall of the light guide mounting frame 21, a diffusion film 33 is arranged on the other side of the light guide plate 32, and a prism film 34 is arranged on the other side of the diffusion film 33. The cooperation of the reflective film 31, the light guide plate 32, the diffusion film 33 and the prism film 34 can facilitate the enhancement and reflection of the light source, thereby improving the light guiding effect of the light guide module during use.

[0034] The working principle of the light guide module for a reflective liquid crystal display is described in detail below.

[0035] like Figure 1-5 As shown, when using the light guide module of the reflective liquid crystal display, first install the mounting bracket plate 11 inside the display, and then when the light guide unit 2 needs to be installed, align the light guide unit 2 with one side of the limit spring column 12, and then flip the L-shaped plate 13, adjust the angle of the L-shaped plate 13, and after adjusting to a suitable angle, fix the light guide unit 2 by rotating the threaded fixing bolt 14, thereby completing the installation of the light guide unit 2. During the use of the light guide module of the reflective liquid crystal display, heat will be generated. The cooperation between the annular heat sink 22 and the heat dissipation copper tube 23 can conveniently assist in dissipating the heat of the outer surface of the light guide mounting frame 21. During the operation of the optical film assembly 3, the LED light bar 24 can be used to cooperate with the optical film assembly 3 for fill light. When filling light, the cooperation between the reflective film 31, the light guide plate 32, the diffusion film 33 and the prism film 34 can conveniently strengthen and reflect the light source, thereby making the light guide effect of the light guide module during use.

[0036] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A light guide module for a reflective liquid crystal display, comprising a mounting unit (1); A light guide unit (2) provided on the outer surface of the mounting unit (1) for mounting; and a light film assembly (3) arranged inside the light guide unit (2) for guiding light, characterized in that: The mounting unit (1) comprises a mounting component arranged on the outer surface of the mounting unit (1) and a clamping component arranged on the outer surface of the mounting component, and the light guide unit (2) comprises a fill light component arranged on the outer surface of the mounting unit (1) and a heat dissipation component arranged on the outer surface of the fill light component.

2. A light guide module for a reflective liquid crystal display according to claim 1, characterized in that: The mounting assembly comprises a mounting bracket plate (11), a limiting spring column (12) is arranged on the outer surface of the mounting bracket plate (11), and a groove (111) is opened on the outer surface of the mounting bracket plate (11).

3. The light guide module for a reflective liquid crystal display according to claim 2, characterized in that: The clamping assembly comprises an L-shaped plate (13), the outer surface of the L-shaped plate (13) is rotatably connected to the inner wall of the groove (111), and the outer surface of the L-shaped plate (13) is threadedly connected to a threaded fixing bolt (14).

4. The light guide module for a reflective liquid crystal display according to claim 1, characterized in that: The fill light assembly comprises a light guide installation frame (21), the outer surface of the light guide installation frame (21) is provided with a positioning groove (212), the inner wall of the light guide installation frame (21) is provided with a mounting groove (211), and the inner wall of the mounting groove (211) is fixedly connected with an LED light bar (24).

5. The light guide module for a reflective liquid crystal display according to claim 4, characterized in that: The heat dissipation component comprises an annular heat sink (22), the outer surface of the annular heat sink (22) is fixedly connected to the inner wall of the light guide installation frame (21), and the inner wall of the annular heat sink (22) is fixedly connected to a heat dissipation copper tube (23).

6. The light guide module for a reflective liquid crystal display according to claim 1, characterized in that: The optical film assembly (3) comprises a reflective film (31), a light guide plate (32) is provided on one side of the reflective film (31), and the outer surface of the light guide plate (32) is fixedly connected to the inner wall of the light guide installation frame (21).

7. A light guide module for a reflective liquid crystal display according to claim 6, characterized in that: A diffusion film (33) is arranged on the other side of the light guide plate (32), and a prism film (34) is arranged on the other side of the diffusion film (33).

Images