LCD module and projector

Abstract

The utility model belongs to the technical field of projectors, and discloses an LCD module and a projector. The LCD module comprises a frame body, a liquid crystal panel and a fixing buckle, a panel hole for a light source to pass through is formed in the frame body in a penetrating mode in the first direction, the frame body comprises a first wall, the first wall is the outer wall of any end of the frame body in the first direction, and an installation step is arranged at the position, located at a port of the panel hole, of the first wall; the first wall is provided with a clamping protrusion protruding towards the center of the panel hole. The peripheral edge of the liquid crystal panel is accommodated in the mounting step in a matched manner, and part of the peripheral edge is clamped between the clamping bulge and the step surface of the mounting step; the fixing buckle is arranged on the frame body, the fixing buckle and the clamping protrusion are oppositely arranged in the second direction, and part of the peripheral edge is clamped between the fixing buckle and the step face. According to the LCD module, the liquid crystal panel is more convenient to mount, the fixing effect of the liquid crystal panel can be improved, and the liquid crystal panel can be prevented from being polluted and damaged in the mounting process.

Description

Technical Field

[0001] This utility model relates to the field of projector technology, and in particular to an LCD module and a projector. Background Technology

[0002] An LCD projector consists of three basic parts: a light source, an optical system, and an LCD panel module. The strong light emitted by the light source is projected onto the LCD panel through lenses in the optical system. The liquid crystal molecules on the LCD panel change under the influence of an electric field, and through the modulation of the RGB primary colors, an image is ultimately formed. The LCD panel is the main component forming the image, and its aperture ratio and temperature resistance directly affect the brightness of the projection; simultaneously, the resolution of the LCD panel directly affects the detail and clarity of the projected image.

[0003] Currently, LCD screens are typically fixed inside projectors using either plastic brackets or adhesive bonding. Using plastic brackets requires completely surrounding the LCD screen before securing it to the projector. This method is not only complex but also prone to damaging the screen during assembly, as it can contaminate the screen surface and affect projection quality. Adhesive bonding, on the other hand, involves gluing the LCD screen to the projector's internal mounting bracket. During prolonged projector operation, the high temperatures can cause the adhesive to degrade, leading to screen detachment. This method lacks stability and practicality.

[0004] Therefore, there is an urgent need to provide a new type of LCD module and projector to solve the above-mentioned technical problems in the existing technology. Utility Model Content

[0005] The purpose of this utility model is to provide an LCD module that can improve the fixing effect of the LCD panel, make the installation of the LCD panel more convenient, and prevent the LCD panel from being contaminated or damaged during the installation process.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] The LCD module includes a frame body, a liquid crystal panel, and a fixing buckle. The frame body has a panel hole through which a light source passes along a first direction. The frame body includes a first wall, which is the outer wall of any end of the frame body along the first direction. The first wall has a mounting step at the port of the panel hole and a snap-fit ​​protrusion protruding towards the center of the panel hole. The outer peripheral edge of the liquid crystal panel is fitted and accommodated in the mounting step, and a portion of the outer peripheral edge is sandwiched between the snap-fit ​​protrusion and the step surface of the mounting step. The fixing buckle is disposed on the frame body and is disposed opposite to the snap-fit ​​protrusion along a second direction. A portion of the outer peripheral edge is sandwiched between the fixing buckle and the step surface. The first direction is perpendicular to the second direction.

[0008] Optionally, the aforementioned fixing buckle includes a connecting part and two first engaging parts. The connecting part extends along a third direction, and the two first engaging parts are correspondingly disposed at both ends of the connecting part along the third direction. The connecting part is engaged and fixed to the frame body, and the outer peripheral edge is sandwiched between the first engaging part and the stepped surface. The first direction, the second direction, and the third direction are perpendicular to each other.

[0009] Optionally, the connecting portion is provided with elastic buckles at both ends along the third direction, and the frame body is provided with buckle protrusions at both ends along the third direction. The buckle protrusions are located at the end of the frame body along the second direction that is close to the fixed buckle, and the elastic buckles and the buckle protrusions are engaged in a one-to-one correspondence.

[0010] Optionally, the connecting portion is provided with a first snap-fit ​​portion at one end along the first direction and a second snap-fit ​​portion at the other end, the second snap-fit ​​portion abutting against the outer wall of the frame body at the end away from the first wall along the first direction.

[0011] Optionally, the connecting portion abuts against the first wall, and the second snap-fit ​​portion includes a snap-fit ​​section and a connecting section extending along the first direction. One end of the connecting section is connected to the connecting portion, and the other end is connected to the snap-fit ​​section. The snap-fit ​​section abuts against the frame body.

[0012] Optionally, the frame body has a receiving groove at one end along the second direction near the fixing buckle, and the receiving groove is used to accommodate the connecting section.

[0013] Optionally, multiple receiving slots and multiple second snap-fit ​​portions are provided, and each of the connecting segments is received in a corresponding receiving slot.

[0014] Optionally, the first wall is further provided with a clearance groove, which is located at one end of the frame body along the second direction near the fixing buckle. The clearance groove is located between the two first snap-fit ​​portions, and the ribbon cable of the liquid crystal panel is sandwiched between the clearance groove and the connecting portion.

[0015] Optionally, the aforementioned liquid crystal panel is rectangular, and the four corners of the aforementioned mounting steps are provided with concave rounded corners.

[0016] Another objective of this invention is to provide a projector that includes an LCD module as described in any of the above embodiments.

[0017] Beneficial effects:

[0018] The LCD module of this invention uses a frame body and fixing clips to secure the LCD panel. The first wall of the frame body has a panel hole for a light source to pass through, emitting and projecting light onto the LCD panel. A mounting step is provided at the cut end of the panel hole. By placing the outer peripheral edge of the LCD panel within the mounting step, the circumferential direction of the LCD panel is fixed and limited. The first wall also has a snap-fit ​​protrusion, which presses and fixes the outer peripheral edge tightly onto the step surface of the mounting step. Simultaneously, the fixing clips secure the LCD panel to the frame body, also pressing and fixing the outer peripheral edge onto the mounting step. The fixing clips and snap-fit ​​protrusions work together to limit and fix the LCD panel in both the first and second directions, thus achieving a firm and reliable fixation of the LCD panel to the frame body. When installing and fixing the LCD panel, there is no need to grasp the center of the LCD panel; simply push the LCD panel into the mounting step along the second direction, and then install the fixing clips to secure the LCD panel. This makes installation more convenient, improves the fixing effect, and prevents contamination and damage to the LCD panel during installation. Attached Figure Description

[0019] Figure 1 This is an isometric view of the LCD module provided in a specific embodiment of this utility model;

[0020] Figure 2 This is an exploded view of the LCD module provided in a specific embodiment of this utility model;

[0021] Figure 3 yes Figure 2 A magnified view of a portion of point A in the middle.

[0022] In the picture:

[0023] 100. Frame body; 101. Panel hole; 110. First wall; 111. Snap-fit ​​protrusion; 120. Mounting step; 121. Concave rounded corner; 122. Step surface; 130. Clearance groove; 140. Receiving groove; 150. Snap-fit ​​protrusion;

[0024] 200. LCD panel; 210. Outer perimeter edge; 220. Ribbon cable;

[0025] 300, Fixed buckle; 310, Connecting part; 320, First snap-fit ​​part; 330, Elastic buckle; 340, Second snap-fit ​​part; 341, Snap-fit ​​section; 342, Connecting section. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not the entire structure.

[0027] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0029] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0030] In this embodiment, the first direction is... Figure 1 The X direction shown is the thickness direction of the liquid crystal panel 200; the second direction is... Figure 1 The Y direction shown is the width direction of the LCD panel 200; the third direction is... Figure 1 The Z direction shown is the length direction of the liquid crystal panel 200; wherein the first direction, the second direction, and the third direction are perpendicular to each other.

[0031] like Figure 1 and Figure 2 As shown, the LCD module includes a frame body 100, a liquid crystal panel 200, and a fixing buckle 300. The frame body 100 has a panel hole 101 through which a light source passes along a first direction. The frame body 100 includes a first wall 110, which is the outer wall of any end of the frame body 100 along the first direction. The first wall 110 has a mounting step 120 at the port of the panel hole 101. The first wall 110 is provided with a snap-fit ​​protrusion protruding toward the center of the panel hole 101. 111; The outer peripheral edge 210 of the aforementioned liquid crystal panel 200 is fitted and accommodated in the aforementioned mounting step 120, and a portion of the aforementioned outer peripheral edge 210 is sandwiched between the aforementioned snap-fit ​​protrusion 111 and the step surface 122 of the aforementioned mounting step 120; The aforementioned fixing buckle 300 is disposed on the aforementioned frame body 100, and the aforementioned fixing buckle 300 and the aforementioned snap-fit ​​protrusion 111 are disposed opposite to each other along the second direction, and a portion of the aforementioned outer peripheral edge 210 is sandwiched between the aforementioned fixing buckle 300 and the aforementioned step surface 122; The aforementioned first direction is perpendicular to the aforementioned second direction.

[0032] In this embodiment, the LCD module uses a frame body 100 and a fixing buckle 300 to fix the liquid crystal panel 200. The first wall 110 of the frame body 100 has a panel hole 101 for light sources to pass through, thereby emitting light and projecting it onto the liquid crystal panel 200. A mounting step 120 is provided at the cut end of the panel hole 101. By placing the outer peripheral edge 210 of the liquid crystal panel 200 within the mounting step 120, the liquid crystal panel 200 is fixed and limited in the circumferential direction. The first wall 110 is also provided with a snap-fit ​​protrusion 111. The outer peripheral edge 210 can be pressed and fixed onto the step surface 122 of the mounting step 120 by means of the snap-fit ​​protrusion 111. Simultaneously, it is fixed onto the frame body 100 using the fixing buckle 300, which also presses and fixes the outer peripheral edge 210 onto the mounting step 120. The fixing buckle 300 and the snap-fit ​​protrusion 111 work together to limit and fix the LCD panel 200 in the first and second directions, thereby achieving a firm and reliable fixation of the LCD panel 200 on the frame body 100. When installing and fixing the LCD panel 200, it is not necessary to grasp the center of the LCD panel 200; simply push the LCD panel 200 into the mounting step 120 along the second direction, and then install the fixing buckle 300 to fix the LCD panel 200. This makes the installation of the LCD panel 200 more convenient, improves the fixing effect of the LCD panel 200, and also prevents contamination and damage to the LCD panel 200 during installation.

[0033] like Figure 2 As shown, the aforementioned fixing buckle 300 includes a connecting portion 310 and two first engaging portions 320. The connecting portion 310 extends along a third direction, and the two first engaging portions 320 are correspondingly disposed at both ends of the connecting portion 310 along the third direction. The connecting portion 310 is engaged and fixed to the frame body 100. The outer peripheral edge 210 is sandwiched between the first engaging portion 320 and the stepped surface 122. The first direction, the second direction, and the third direction are all perpendicular to each other. By fixing the connecting portion 310 to the interface of the frame body 100, the fixing buckle 300 is fixed to the frame body 100. The two first engaging portions 320 of the connecting portion 310 can engage and fix the outer peripheral edge 210 of the LCD panel 200 at one end along the second direction. The fixing effect of the two first engaging portions 320 is better, and the fixing of the LCD panel 200 is more stable.

[0034] Furthermore, such as Figure 2 and Figure 3As shown, the connecting portion 310 is provided with elastic buckles 330 at both ends along the third direction, and the frame body 100 is provided with buckle protrusions 150 at both ends along the third direction. The buckle protrusions 150 are located at the end of the frame body 100 along the second direction near the fixing buckle 300, and the elastic buckles 330 and the buckle protrusions 150 are engaged in a one-to-one manner. Due to the corresponding engagement and fixation of the elastic buckles 330 and the buckle protrusions 150, the connecting portion 310 can be limited and fixed on the frame body 100 along the third and second directions, preventing the fixing buckle 300 from falling off along the third or second direction, thus improving the fixing effect of the fixing buckle 300 and further enhancing the fixing effect of the liquid crystal panel 200.

[0035] Please continue to refer to this. Figure 2 The connecting portion 310 has a first latching portion 320 at one end along the first direction and a second latching portion 340 at the other end. The second latching portion 340 abuts against the outer wall of the frame body 100 at the end away from the first wall 110 along the first direction. Thus, the first latching portion 320 and the second latching portion 340 clamp together to press and fix the liquid crystal panel 200 within the mounting step 120. This fixation is not only more stable, but also simplifies the installation of the fixing buckle 300 and the frame body 100, improving installation efficiency.

[0036] In this embodiment, the connecting portion 310 abuts against the first wall 110, and the second snap-fit ​​portion 340 includes a snap-fit ​​section 341 and a connecting section 342 extending along the first direction. One end of the connecting section 342 is connected to the connecting portion 310, and the other end is connected to the snap-fit ​​section 341. The snap-fit ​​section 341 abuts against the frame body 100. The connecting portion 310 abuts against the first wall 110, and the second snap-fit ​​portion 340 is composed of the connecting section 342 and the snap-fit ​​section 341, thereby reducing the thickness of the connecting portion 310. While achieving the snap-fit ​​fixing of the fastener 300 to the frame body 100, it also reduces the weight of the fastener 300 and the LCD module, thereby improving the ease of installation of the LCD module.

[0037] Optionally, the frame body 100 is provided with a receiving groove 140 at one end along the second direction near the fixing buckle 300. The receiving groove 140 is used to accommodate the connecting segment 342. The providing of the receiving groove 140 can reduce the space occupied by the connecting segment 342 in the second direction, thereby reducing the space required for the installation of the LCD module in the second direction and improving the convenience of installing the LCD module in the projector.

[0038] In a preferred embodiment, multiple receiving slots 140 and multiple second snap-fit ​​portions 340 are provided, and the connecting segments 342 are respectively accommodated in the receiving slots 140. The provision of multiple second snap-fit ​​portions 340 can improve the installation stability of the fixing buckle 300 on the frame body 100, and further ensure that the fixing buckle 300 can firmly fix the liquid crystal panel 200 in the frame body 100. In this embodiment, two second connecting portions 310 and two receiving slots 140 are provided, which will not be described in detail here.

[0039] Optionally, the first wall 110 is further provided with a clearance groove 130. The clearance groove 130 is located at one end of the frame body 100 along the second direction near the fixing buckle 300. The clearance groove 130 is located between the two first snap-fit ​​portions 320. The ribbon cable 220 of the liquid crystal panel 200 is sandwiched between the clearance groove 130 and the connecting portion 310. The clearance groove 130 allows the ribbon cable 220 to be smoothly led out after the liquid crystal panel 200 is installed, without being blocked by the connecting portion 310 of the fixing buckle 300, and without the connecting portion 310 squeezing and damaging the ribbon cable 220, thus ensuring the reliable operation of the liquid crystal panel 200.

[0040] like Figure 3 As shown, the aforementioned LCD panel 200 is rectangular, and the four corners of the aforementioned mounting steps 120 are provided with concave rounded corners 121. Since the LCD panel 200 is rectangular, the space enclosed by its corresponding mounting steps 120 will have four corners. When the frame body 100 is in use, stress concentration will occur at the corners of its mounting steps 120, and damage will occur at the corners after long-term use. The concave rounded corners 121 can reduce stress concentration at the corners, improve its service life and reliability, and at the same time facilitate the installation of the LCD panel 200 and improve installation efficiency.

[0041] This embodiment also provides a projector that includes an LCD module as described in any of the above embodiments. The LCD module used in this projector improves the fixation effect of the liquid crystal panel 200, and makes the installation of the liquid crystal panel 200 more convenient. When installing and fixing the liquid crystal panel 200, it is not necessary to grasp the center of the liquid crystal panel 200; simply push the liquid crystal panel 200 into the mounting step 120 along the second direction, and then install the fixing clip 300 to fix the liquid crystal panel 200. This makes the installation of the liquid crystal panel 200 more convenient, improves the fixation effect, and prevents contamination and damage to the liquid crystal panel 200 during installation, thereby improving the production quality and yield of the final LCD module and the overall production quality of the projector.

[0042] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An LCD module, characterized by comprising: include: A frame body (100) is provided with a panel hole (101) through which a light source passes along a first direction. The frame body (100) includes a first wall (110), which is the outer wall of any end of the frame body (100) along the first direction. The first wall (110) is provided with an installation step (120) at the port of the panel hole (101). The first wall (110) is provided with a snap-fit ​​protrusion (111) protruding toward the center of the panel hole (101). The liquid crystal panel (200) has an outer peripheral edge (210) that fits into the mounting step (120), and a portion of the outer peripheral edge (210) is sandwiched between the snap-fit ​​protrusion (111) and the step surface (122) of the mounting step (120). A fixing buckle (300) is disposed on the frame body (100). The fixing buckle (300) and the snap-fit ​​protrusion (111) are disposed opposite each other along the second direction. Part of the outer peripheral edge (210) is sandwiched between the fixing buckle (300) and the step surface (122). The first direction is perpendicular to the second direction.

2. The LCD module according to claim 1, wherein The fixing buckle (300) includes a connecting part (310) and two first snap-fit ​​parts (320). The connecting part (310) extends along a third direction, and the two first snap-fit ​​parts (320) are correspondingly disposed at both ends of the connecting part (310) along the third direction. The connecting part (310) is snap-fitted and fixed to the frame body (100). The outer peripheral edge (210) is sandwiched between the first snap-fit ​​part (320) and the step surface (122). The first direction, the second direction and the third direction are perpendicular to each other.

3. The LCD module of claim 2, wherein, The connecting part (310) is provided with elastic buckles (330) at both ends along the third direction, and the frame body (100) is provided with buckle protrusions (150) at both ends along the third direction. The buckle protrusions (150) are located at the end of the frame body (100) along the second direction close to the fixed buckle (300). The elastic buckles (330) and the buckle protrusions (150) are engaged in a one-to-one correspondence.

4. The LCD module of claim 3, wherein, The connecting part (310) is provided with a first snap-fit ​​part (320) at one end along the first direction and a second snap-fit ​​part (340) at the other end. The second snap-fit ​​part (340) abuts against the outer wall of the frame body (100) at the end away from the first wall (110) along the first direction.

5. The LCD module of claim 4, wherein, The connecting portion (310) abuts against the first wall (110), and the second snap-fit ​​portion (340) includes a snap-fit ​​section (341) and a connecting section (342) extending along the first direction. One end of the connecting section (342) is connected to the connecting portion (310), and the other end is connected to the snap-fit ​​section (341). The snap-fit ​​section (341) abuts against the frame body (100).

6. The LCD module of claim 5, wherein, The frame body (100) has a receiving groove (140) at one end along the second direction near the fixing buckle (300), and the receiving groove (140) is used to accommodate the connecting section (342).

7. The LCD module of claim 6, wherein, Both the receiving groove (140) and the second snap-fit ​​part (340) are provided with multiple portions, and the connecting section (342) is received in the receiving groove (140) one by one.

8. The LCD module of claim 2, wherein, The first wall (110) is also provided with a clearance groove (130), which is located at one end of the frame body (100) along the second direction near the fixing buckle (300). The clearance groove (130) is located between the two first snap-fit ​​portions (320), and the ribbon cable (220) of the liquid crystal panel (200) is sandwiched between the clearance groove (130) and the connecting portion (310).

9. The LCD module according to any one of claims 1 to 8, wherein, The liquid crystal panel (200) is rectangular, and the four corners of the mounting step (120) are provided with concave rounded corners (121).

10. A projector characterized by comprising: Includes the LCD module as described in any one of claims 1-9.

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