Liquid crystal screen module and projector

Abstract

The utility model relates to a liquid crystal screen module and a projector. A liquid crystal screen module comprises a liquid crystal screen assembly which comprises a liquid crystal screen and an electric connecting piece with one end connected to the liquid crystal screen; the packaging structure comprises a first support and a second support which are connected. The sealing structure comprises a first sealing piece installed on the first support and a second sealing piece installed on the second support, the liquid crystal screen extends into the position between the first support and the second support and is clamped and fixed by the first support and the second support, and the electric connecting piece extends out of the packaging structure. A partial area of the first sealing piece abuts against the position between the first support and the electric connecting piece, and a partial area of the second sealing piece abuts against the position between the second support and the electric connecting piece. According to the liquid crystal screen module and the projector, the sealing performance between the electric connecting piece and the packaging structure is good, the cooling liquid in the packaging structure is not prone to leakage, a good heat dissipation effect can be kept, and short circuit of other electric appliance elements caused by leakage of the cooling liquid is not prone to occurring.

Description

Technical Field

[0001] This application relates to the technical field of liquid crystal display screen sealing, especially to a liquid crystal display screen module and a projector. Background Art

[0002] A liquid crystal projector is composed of a light source, a light guide rod, a front Fresnel lens, a heat insulation glass, a liquid crystal display screen, a rear Fresnel lens, a lens, etc., and is a projector that projects and magnifies an image. Generally, the liquid crystal display screen and an external control system are connected by an electrical connector such as an FPC or an FFC to realize the control of the liquid crystal display screen by the external control system.

[0003] Generally, as the display brightness of the liquid crystal display screen increases, its heat dissipation requirement is also higher. At present, many manufacturers, in order to meet the design requirement of higher brightness of the liquid crystal display screen, will encapsulate the liquid crystal display screen in a packaging structure, and a coolant flows through the packaging structure to perform immersion liquid cooling on the liquid crystal display screen, so as to realize efficient heat dissipation of the liquid crystal display screen. However, there may be a gap between the electrical connector extending from inside the packaging structure to outside the packaging structure and the packaging structure, and the coolant inside the packaging structure is likely to leak through this gap, which is not conducive to further improving the heat dissipation effect, and the leaked coolant may cause some electrical components to short circuit. Summary of the Utility Model

[0004] Based on this, it is necessary to provide a liquid crystal display screen module and a projector, in which the sealing performance between the electrical connector and the packaging structure is good, the coolant inside the packaging structure is not likely to leak, which is beneficial to maintaining a better heat dissipation effect, and it is not likely to cause other electrical components to short circuit due to the leakage of the coolant.

[0005] A liquid crystal display screen module, the liquid crystal display screen module includes:

[0006] A liquid crystal display screen assembly, including a liquid crystal display screen and an electrical connector with one end connected to the liquid crystal display screen;

[0007] A packaging structure, including a first bracket and a second bracket connected to each other; and

[0008] A sealing structure, including a first seal installed on the first bracket and a second seal installed on the second bracket. The liquid crystal display screen extends between the first bracket and the second bracket and is clamped and fixed by the first bracket and the second bracket. The electrical connector extends outside the packaging structure. A partial area of the first seal abuts between the first bracket and the electrical connector, and a partial area of the second seal abuts between the second bracket and the electrical connector.

[0009] In some embodiments, a first sealing groove is recessed on a side of the first bracket close to the second bracket, a second sealing groove is recessed on a side of the second bracket close to the first bracket, the first sealing member is clamped in the first sealing groove, and the second sealing member is clamped in the second sealing groove.

[0010] In some embodiments, the first seal and the second seal are respectively abutted against two sides of the same position on the electrical connector at one end along the first direction, and the first seal and the second seal are abutted against each other at the other end along the first direction, wherein the electrical connector and the liquid crystal screen are arranged along the first direction.

[0011] In some embodiments, the areas on the first bracket located on both sides of the first sealing groove along the first direction are flush with the side of the first sealing component close to the electrical connector; the areas on the second bracket located on both sides of the second sealing groove along the first direction are flush with the side of the second sealing component close to the electrical connector.

[0012] In some embodiments, the first seal and the second seal are both annular, and their orthographic projection contours along the second direction coincide with each other, wherein the first bracket and the second bracket are arranged along the second direction, and the second direction is perpendicular to the first direction.

[0013] In some embodiments, the first bracket has a first cavity for accommodating a cooling liquid, and a first mounting groove connected to the first cavity, the first mounting groove is larger than the first cavity in a first direction so as to form a step surface between the two, wherein the electrical connector and the liquid crystal screen are arranged along the first direction;

[0014] The second bracket has a second cavity for accommodating a coolant, and a second mounting groove connected to the second cavity, the second mounting groove is connected to the first mounting groove, and the size of the second mounting groove along the first direction is larger than that of the second cavity, so as to construct a step surface between the two;

[0015] The liquid crystal screen is clamped in the first mounting groove and the second mounting groove.

[0016] In some embodiments, the LCD module includes a first sealing mirror and a second sealing mirror;

[0017] The first bracket has a first card slot connected to the first cavity, the first card slot is located on a side of the first cavity away from the first mounting slot along the second direction, the first sealed mirror is clamped in the first mounting slot and the two are sealed and connected; wherein the first bracket and the second bracket are arranged along the second direction;

[0018] The second bracket has a second card slot connected to the second cavity, the second card slot is located on a side of the second cavity away from the second installation slot along the second direction, and the second sealed mirror is clamped in the second installation slot and the two are sealed.

[0019] In some embodiments, a sealing ring is provided between the first sealing mirror and the groove wall of the first installation groove; and / or a sealing ring is provided between the second sealing mirror and the groove wall of the second installation groove.

[0020] In some embodiments, the liquid crystal screen module includes a liquid inlet pipe and a liquid outlet pipe connected to the first cavity and the second cavity;

[0021] One of the liquid inlet pipe and the liquid discharge pipe is connected to the first bracket, and the other is connected to the second bracket, or both the liquid inlet pipe and the liquid discharge pipe are connected to the first bracket / the second bracket.

[0022] A projector comprises the above-mentioned liquid crystal screen module.

[0023] The above-mentioned LCD screen module and projector, the LCD screen extends between the first bracket and the second bracket and is clamped and fixed by the first bracket and the second bracket, thereby realizing the fixed installation of the LCD screen assembly. A first seal is installed on the first bracket, and a second seal is installed on the second bracket, and a part of the first seal abuts between the first bracket and the electrical connector, and a part of the second seal abuts between the second bracket and the electrical connector, so as to fill the gap between the two sides of the electrical connector and the corresponding bracket. The first seal and the second seal are respectively used to seal the two sides of the electrical connector and the corresponding bracket, and the cooling liquid between the first bracket and the second bracket is suppressed from leaking through the two sides of the electrical connector and the corresponding bracket, which is conducive to maintaining a better heat dissipation effect, and it is not easy to cause short circuit of other electrical components due to leakage of cooling liquid. In addition, through the clamping and squeezing of the first bracket and the second bracket, the fixed installation of the LCD screen and the sealing of the two sides of the electrical connector and the corresponding bracket are realized at the same time, and there is no need to set up another structure to fix the LCD screen, and the overall structure will be simpler. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 FIG. 1 is a schematic diagram of a liquid crystal panel module in an embodiment of the present application.

[0025] Figure 2 for Figure 1 Cross-sectional view at AA in the middle.

[0026] Figure 3 for Figure 2 A partial enlarged view of the area where the CEC connector is located.

[0027] Figure 4 This is an exploded view of a liquid crystal display module in an embodiment of the present application.

[0028] Liquid crystal display component 100, liquid crystal display 110, electrical connector 120;

[0029] First bracket 200, first sealing groove 210, first cavity 220, first mounting groove 230, first card slot 240;

[0030] Second bracket 300, second sealing groove 310, second cavity 320, second mounting groove 330, second card slot 340;

[0031] First seal 400;

[0032] Second seal 500;

[0033] First sealing mirror 600;

[0034] Second sealing mirror 700. Detailed implementation manners

[0035] To make the above objects, features, and advantages of the present application more obvious and understandable, the following will describe the detailed implementation manners of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0036] In the description of the present application, it should be understood that if terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the accompanying drawings, and is 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 should not be construed as a limitation to the present application.

[0037] In addition, if terms such as "first" and "second" appear, these terms are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0038] In this application, unless otherwise clearly defined and limited, if terms such as "installed", "connected", "joined", "fixed", etc. appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0039] In this application, unless otherwise clearly defined and limited, if there is a description such as a first feature being "on" or "under" a second feature, its meaning can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over", and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath", and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or simply means that the horizontal height of the first feature is less than that of the second feature.

[0040] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there can also be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. If so, the terms "vertical", "horizontal", "up", "down", "left", "right", and similar expressions used in this application are only for the purpose of illustration and do not represent the only implementation.

[0041] Refer to Figures 1 to 4 , a liquid crystal display screen module provided by an embodiment of this application includes a liquid crystal display screen assembly 100, a packaging structure, and a sealing structure. Among them, the liquid crystal display screen assembly 100 includes a liquid crystal display screen 110 and an electrical connection member 120 with one end connected to the liquid crystal display screen 110. The packaging structure includes a first bracket 200 and a second bracket 300 connected to each other. The sealing structure includes a first seal 400 installed on the first bracket 200 and a second seal 500 installed on the second bracket 300. The liquid crystal display screen 110 extends between the first bracket 200 and the second bracket 300 and is clamped and fixed by the first bracket 200 and the second bracket 300. The electrical connection member 120 extends outside the packaging structure. A partial area of the first seal 400 abuts between the first bracket 200 and the electrical connection member 120, and a partial area of the second seal 500 abuts between the second bracket 300 and the electrical connection member 120.

[0042] In the above embodiments, the liquid crystal screen 110 extends between the first bracket 200 and the second bracket 300 and is clamped and fixed by the first bracket 200 and the second bracket 300, thereby realizing the fixed installation of the liquid crystal screen assembly 100. A first seal 400 is installed on the first bracket 200, and a second seal 500 is installed on the second bracket 300. A partial area of the first seal 400 abuts between the first bracket 200 and the electrical connector 120, and a partial area of the second seal 500 abuts between the second bracket 300 and the electrical connector 120, so as to fill the gaps on both sides of the electrical connector 120 and between the corresponding brackets. The first seal 400 and the second seal 500 are respectively used to seal between both sides of the electrical connector 120 and the corresponding brackets, suppressing the leakage of the coolant between the first bracket 200 and the second bracket 300 through both sides of the electrical connector 120 and between the corresponding brackets. This is conducive to maintaining a better heat dissipation effect and is not likely to cause short circuits in other electrical components due to coolant leakage. In addition, through the clamping and extrusion of the first bracket 200 and the second bracket 300, the fixed installation of the liquid crystal screen 110 and the sealing between both sides of the electrical connector 120 and the corresponding brackets are realized at the same time. There is no need to set up additional structures for the fixed installation of the liquid crystal screen 110, and the overall structure will be simpler.

[0043] Specifically, from the perspective of the attached drawings, the up-down direction is defined as the first direction, and the left-right direction is defined as the second direction, and the two are perpendicular to each other. The first bracket 200 and the second bracket 300 are arranged along the second direction, and the electrical connector 120 and the liquid crystal screen 110 are arranged along the first direction.

[0044] Refer to Figures 1 to 4 , in some embodiments, a first sealing groove 210 is recessed on one side of the first bracket 200 close to the second bracket 300, and a second sealing groove 310 is recessed on one side of the second bracket 300 close to the first bracket 200. The first seal 400 is clamped in the first sealing groove 210, and the second seal 500 is clamped in the second sealing groove 310.

[0045] From the perspective of the attached drawings, the first sealing groove 210 is recessed on the right end face of the first bracket 200, and the second sealing groove 310 is recessed on the left end face of the second bracket 300.

[0046] The shape and size of the first sealing groove 210 match those of the first seal 400. By snapping the first seal 400 into the first sealing groove 210, the position of the first seal 400 is fixed. Similarly, the shape and size of the second sealing groove 310 match those of the second seal 500. By snapping the second seal 500 into the second sealing groove 310, the position of the second seal 500 is fixed. In this way, after installation, the first seal 400 and the second seal 500 are not likely to shift, so that they can respectively stably abut against both sides of the electrical connector 120, ensuring good sealing performance.

[0047] Refer to Figures 1 to 4 , in some embodiments, one end of the first seal 400 and the second seal 500 respectively abuts against both sides of the same position on the electrical connector 120 along the first direction, and the other ends of the first seal 400 and the second seal 500 abut against each other along the first direction.

[0048] In the perspective of the attached drawing, the electrical connector 120 extends upward from the top end of the liquid crystal screen 110 to the outside of the packaging structure. The top ends of the first seal 400 and the second seal 500 respectively abut against the left and right sides of the same position on the electrical connector 120, so as to achieve the sealing between the electrical connector 120 and the first bracket 200, and between the electrical connector 120 and the second bracket 300, and inhibit the leakage of the coolant outward through the gaps on both left and right sides of the electrical connector 120. At the same time, the bottom ends of the first seal 400 and the second seal 500 are in direct contact and abut against each other, so as to achieve the sealing at this part between the first bracket 200 and the second bracket 300, and inhibit the leakage of the coolant outward through the gap between them, making the sealing of the entire liquid crystal screen module more comprehensive.

[0049] Refer to Figures 1 to 4 , in some embodiments, the areas on both sides of the first sealing groove 210 along the first direction on the first bracket 200 are flush with the side of the first seal 400 close to the electrical connector 120; the areas on both sides of the second sealing groove 310 along the first direction on the second bracket 300 are flush with the side of the second seal 500 close to the electrical connector 120.

[0050] In the perspective of the attached drawing, that is, the areas above and below the first sealing groove 210 on the right end face of the first bracket 200 are flush with the right side of the first seal 400; the areas above and below the second sealing groove 310 on the left end face of the second bracket 300 are flush with the left side of the second seal 500. In this way, it can be ensured that after installation, the first seal 400 and the second seal 500 will not overly squeeze the electrical connector 120, so that the electrical connector 120 can be kept as straight as possible and is not likely to break due to excessive squeezing and bending.

[0051] It should be noted that the "flush" mentioned in the embodiments of the present application includes both completely flush and substantially flush. Among them, substantially flush means that the spacing along the second direction does not exceed a preset value, and the preset value can be set artificially. For example, the preset value is set to be 1 mm to 3 mm.

[0052] Referring to Figures 1 to 4 , in some embodiments, both the first seal 400 and the second seal 500 are annular, and the orthographic projection profiles of the two along the second direction coincide.

[0053] Specifically, the first seal 400 and the second seal 500 can be circular, or can be in the shapes of elliptical rings, rectangular rings, etc. The orthographic projection profiles of the two along the second direction coincide, so that one end of the two along the first direction (the top end in the view of the attached drawing) respectively abuts on both sides of the same position on the electrical connector 120, and at the same time, the other end (the bottom end in the view of the attached drawing) contacts and abuts against each other, realizing the sealing between the electrical connector 120 and the two brackets, as well as between the two brackets. At the same time, the two seals are set to be relatively conventional annular shapes, with low manufacturing costs and easy installation.

[0054] Corresponding to the above embodiments, the first seal groove 210 and the second seal groove 310 are also annular.

[0055] Referring to Figures 1 to 4 , in some embodiments, the first bracket 200 has a first cavity 220 for accommodating coolant, and a first installation groove 230 communicating with the first cavity 220. The dimension of the first installation groove 230 along the first direction is greater than that of the first cavity 220 to form a stepped surface therebetween. The second bracket 300 has a second cavity 320 for accommodating coolant, and a second installation groove 330 communicating with the second cavity 320. The second installation groove 330 communicates with the first installation groove 230. The dimension of the second installation groove 330 along the first direction is greater than that of the second cavity 320 to form a stepped surface therebetween. The liquid crystal screen 110 is clamped in the first installation groove 230 and the second installation groove 330.

[0056] In the view of the attached drawing, the first installation groove 230 is recessed from the right end of the first bracket 200 towards the left, and the first cavity 220 is located on the left side of the first installation groove 230. The second installation groove 330 is recessed from the left end of the second bracket 300 towards the right, and the second cavity 320 is located on the right side of the second installation groove 330.

[0057] The size of the second mounting groove 330 and the first mounting groove 230 in the first direction matches the LCD screen 110, and the two step surfaces can guide and position the LCD screen 110 during installation, and limit its position along the first direction after installation to prevent it from shifting in the first direction. The size of the first mounting groove 230 and the second mounting groove 330 in the front-to-back direction can be larger than that of the LCD screen 110, so that the first mounting groove 230 and the second mounting groove 330 can be connected, and the coolant can flow on both sides of the LCD screen 110.

[0058] See also Figures 1 to 4 In some embodiments, the LCD module includes a first sealing mirror 600 and a second sealing mirror 700; the first bracket 200 has a first card slot 240 connected to the first cavity 220, the first card slot 240 is located on the side of the first cavity 220 away from the first mounting groove 230 along the second direction, the first sealing mirror 600 is clamped in the first mounting groove 230 and the two are sealed; the second bracket 300 has a second card slot 340 connected to the second cavity 320, the second card slot 340 is located on the side of the second cavity 320 away from the second mounting groove 330 along the second direction, the second sealing mirror 700 is clamped in the second mounting groove 330 and the two are sealed.

[0059] From the perspective of the accompanying drawings, the first card slot 240 is located on the left side of the first cavity 220 , and the second card slot 340 is located on the right side of the second cavity 320 .

[0060] The first sealing mirror 600 is clamped in the first mounting groove 230 and the two are sealed, and the second sealing mirror 700 is clamped in the second mounting groove 330 and the two are sealed, thereby achieving the closure of the first cavity 220 and the second cavity 320, and limiting the coolant to the area between the first sealing mirror 600 and the second sealing mirror 700.

[0061] In some embodiments, the first sealing mirror 600 and the second sealing mirror 700 are made of glass or hard plastic, which allows light to pass through. The first bracket 200 and the second bracket 300 are made of hard plastic or metal. The first sealing member 400 and the second sealing member 500 are made of soft materials such as silicone or rubber.

[0062] See also Figures 1 to 4 In some embodiments, a sealing ring is provided between the first sealing mirror 600 and the groove wall of the first installation groove 230; and / or a sealing ring is provided between the second sealing mirror 700 and the groove wall of the second installation groove 330. In this way, the first cavity 220 and the second cavity 320 can be sealed, and the cooling liquid can be prevented from leaking outward from between the bracket and the corresponding sealing mirror.

[0063] See also Figures 1 to 4, in some embodiments, the liquid crystal display module includes a liquid inlet pipe and a liquid discharge pipe communicating with the first cavity 220 and the second cavity 320; one of the liquid inlet pipe and the liquid discharge pipe is connected to the first bracket 200, and the other is connected to the second bracket 300, or both the liquid inlet pipe and the liquid discharge pipe are connected to the first bracket 200 / the second bracket 300.

[0064] Specifically, the low-temperature coolant is sent into the first cavity 220 and the second cavity 320 through the liquid inlet pipe to perform liquid cooling on the liquid crystal display screen 110. The high-temperature coolant with an increased temperature after absorbing the heat of the liquid crystal display screen 110 is discharged through the liquid discharge pipe, and is cooled externally, and then converted into low-temperature coolant again and flows into the liquid inlet pipe again. In this way, continuous and efficient heat dissipation of the liquid crystal display screen 110 can be achieved.

[0065] Refer to Figures 1 to 4 , in some embodiments, the first bracket 200 and the second bracket 300 are fixedly connected by threaded fasteners, or they can also be fixedly connected by snap connection.

[0066] Refer to Figures 1 to 4 , a projector provided by an embodiment of the present application includes the liquid crystal display module in any one of the above embodiments.

[0067] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope described in this specification.

[0068] The above embodiments only represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several deformations and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A liquid crystal display module, characterized in that, The liquid crystal screen module comprises: A liquid crystal screen assembly, comprising a liquid crystal screen and an electrical connector having one end connected to the liquid crystal screen; A packaging structure includes a first bracket and a second bracket connected to each other; and The sealing structure includes a first sealing member installed on the first bracket and a second sealing member installed on the second bracket, the liquid crystal screen extends between the first bracket and the second bracket and is clamped and fixed by the first bracket and the second bracket, the electrical connector extends outside the packaging structure, a partial area of the first sealing member abuts between the first bracket and the electrical connector, and a partial area of the second sealing member abuts between the second bracket and the electrical connector.

2. The LCD module according to claim 1, wherein A first sealing groove is recessed on one side of the first bracket close to the second bracket, a second sealing groove is recessed on one side of the second bracket close to the first bracket, the first sealing member is clamped in the first sealing groove, and the second sealing member is clamped in the second sealing groove.

3. The LCD module according to claim 2, wherein The first seal and the second seal are respectively abutted against two sides of the same position on the electrical connector at one end along the first direction, and the first seal and the second seal are abutted against each other at the other end along the first direction, wherein the electrical connector and the liquid crystal screen are arranged along the first direction.

4. The LCD module according to claim 3, wherein The areas on the first bracket located on both sides of the first sealing groove along the first direction are flush with the side of the first sealing member close to the electrical connector; the areas on the second bracket located on both sides of the second sealing groove along the first direction are flush with the side of the second sealing member close to the electrical connector.

5. The LCD module according to claim 3, wherein The first sealing member and the second sealing member are both annular, and their orthographic projection contours along the second direction coincide with each other, wherein the first bracket and the second bracket are arranged along the second direction, and the second direction is perpendicular to the first direction.

6. The LCD module according to claim 1, wherein The first bracket has a first cavity for accommodating a cooling liquid, and a first mounting groove connected to the first cavity, wherein the first mounting groove is larger than the first cavity in a first direction so as to form a step surface between the two, wherein the electrical connector and the liquid crystal screen are arranged along the first direction; The second bracket has a second cavity for accommodating a coolant, and a second mounting groove connected to the second cavity, the second mounting groove is connected to the first mounting groove, and the size of the second mounting groove along the first direction is larger than that of the second cavity, so as to construct a step surface between the two; The liquid crystal screen is clamped in the first mounting groove and the second mounting groove.

7. The LCD module according to claim 6, wherein The liquid crystal screen module comprises a first sealing mirror and a second sealing mirror; The first bracket has a first card slot connected to the first cavity, the first card slot is located on a side of the first cavity away from the first mounting slot along the second direction, the first sealed mirror is clamped in the first mounting slot and the two are sealed and connected; wherein the first bracket and the second bracket are arranged along the second direction; The second bracket has a second card slot connected to the second cavity, the second card slot is located on a side of the second cavity away from the second installation slot along the second direction, and the second sealed mirror is clamped in the second installation slot and the two are sealed.

8. The LCD module according to claim 7, wherein, A sealing ring is provided between the first sealing mirror and the groove wall of the first installation groove; and / or a sealing ring is provided between the second sealing mirror and the groove wall of the second installation groove.

9. The LCD module according to claim 6, wherein The liquid crystal screen module comprises a liquid inlet pipe and a liquid outlet pipe connected to the first cavity and the second cavity; One of the liquid inlet pipe and the liquid discharge pipe is connected to the first bracket, and the other is connected to the second bracket, or both the liquid inlet pipe and the liquid discharge pipe are connected to the first bracket / the second bracket.

10. A projector, characterized in that, The projector comprises the liquid crystal screen module according to any one of claims 1 to 9.

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