High-sealing light leakage prevention display module
By setting an annular groove and a sealing ring on the inner wall of the shell of the liquid crystal display module, and setting up upper and lower flanges on the upper and lower flanges on the upper and lower surfaces of the sealing ring, combining structures such as fixing frames and sockets, the problem of the reduction of sealing properties of the liquid crystal display module due to vibration is solved, achieving high sealing and light leakage protection effect, and extending service life.
Patent Information
- Application Number
- CN202421766555.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-24
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-07-24
AI Technical Summary
During the use of existing LCD display modules, due to vibration and other factors, gaps are prone to appear between the display screen and the packaging shell, which reduces the sealing properties, resulting in light leakage at the edges of the display screen, and dust and rainwater are easily entered, causing damage.
A high-seal light-proof display module is designed. By setting an annular groove and a sealing ring on the inner wall of the shell, and setting an upper and lower flange on the upper and lower flanges on the upper and lower surfaces of the sealing ring, combining structures such as fixing frames and sockets, the sealing between the display screen and the shell is enhanced.
It effectively avoids light leakage at the edge of the display screen, prevents dust and rain from entering, improves the sealing of the display module, and extends the service life.
Smart Images
Figure CN222952564U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of display modules, in particular to a highly sealed light leakage-proof display module. Background Art
[0002] The liquid crystal display module, also known as the liquid crystal screen or liquid crystal panel, is the main component of a liquid crystal display. Its function is to display clear images. The liquid crystal display module mainly includes a liquid crystal panel, a liquid crystal screen drive circuit, a timing control circuit, a backlight component, a TTL or LVDS interface circuit, etc. These parts are usually encapsulated in the same casing.
[0003] During the use of current liquid crystal display modules, due to factors such as vibration, gaps are easily formed between the display screen and the packaging shell, which reduces the sealing of the display module, causing light leakage at the edge of the display screen and making it easy for dust and rainwater to enter the interior of the display module and cause damage to the display module. For this reason, we propose a highly sealed and light-leakage-proof display module. Utility Model Content
[0004] The purpose of the utility model is to provide a highly sealed and light-leakage-proof display module, which has the advantages of being able to improve the sealing between a display screen and a shell, avoiding light leakage at the edge of the display screen, and also preventing rainwater and dust from entering the interior of the display module, thereby extending the service life of the display module. The utility model solves the problem that during the use of the current liquid crystal display module, due to factors such as vibration, a gap is easily formed between the display screen and the packaging shell, thereby reducing the sealing of the display module, which not only causes light leakage at the edge of the display screen, but also makes it easy for dust and rainwater to enter the interior of the display module and cause damage to the display module.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a highly sealed and light-leakage-proof display module, comprising a shell and a display screen, wherein the display screen is located inside the shell, a plurality of annular grooves are arranged on the top of the inner wall of the shell, a sealing ring is arranged inside the shell, an upper flange is arranged on the upper surface of the sealing ring, and the upper flange is located above the display screen, a lower flange is arranged on the lower surface of the sealing ring, and the lower flange is located below the display screen, and a fixing frame is clamped at a position below the lower flange inside the shell.
[0006] Preferably, the cross-sectional view of the annular groove is in the shape of an isosceles trapezoid, and the annular groove in the shape of an isosceles trapezoid facilitates the entry of the upper flange after being compressed and deformed.
[0007] Preferably, a shrinkage groove is provided on the outer surface of the sealing ring, which allows the sealing ring to have shrinkage space after being compressed and shrunk, so as to avoid the sealing ring causing a large squeezing force on the display screen after compression and reduce the material used for the sealing ring.
[0008] Preferably, the outer surface of the shell is provided with sockets near the lower surface, and the outer surface of the fixed frame is provided with raised blocks. The fixed frame is fixed to the inside of the shell by means of the sockets and the raised blocks, and the display screen is fixed to the inside of the shell. When disassembling, the raised blocks and the sockets are separated, so that the fixed frame and the display screen can be removed from the inside of the shell.
[0009] Preferably, a positioning slot is provided on the lower surface of the shell below each socket, and the positioning slot is connected to the socket, so that when the protruding plug block is inserted into the socket, the protruding plug block slides accurately into the socket along the positioning slot.
[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0011] 1. The utility model achieves the effect of improving the sealing between the display screen and the shell, avoiding light leakage at the edge of the display screen, and preventing rainwater and dust from entering the display module, thereby extending the service life of the display module, by arranging a shell, a display screen, a sealing ring, an upper flange, a lower flange, an annular groove and a fixed frame. The sealing ring is in contact with the outer surface of the display screen on all sides, and the upper flange is in contact with the edges of the upper surface of the display screen on all sides. Under extrusion, the upper flange is deformed and partially enters the annular groove, while the lower flange is in contact with the edges of the lower surface of the display screen on all sides. The sealing ring, the upper flange and the lower flange jointly seal the gap between the display screen and the shell, and the sealing is good, and no gap will appear due to vibration, etc., thereby avoiding light leakage at the edge of the display screen, and preventing rainwater and dust from entering the display module, thereby extending the service life of the display module.
[0012] 2. The utility model achieves the effect of facilitating the fixing and disassembly of the display screen by providing the jack and the raised plug-in block. The fixing frame is fixed inside the shell by means of the jack and the raised plug-in block, and the display screen is fixed inside the shell. When disassembling, the raised plug-in block and the jack are separated, and the fixing frame and the display screen can be removed from the inside of the shell.
[0013] 3. The utility model achieves the effect of facilitating the positioning of the protruding plug-in block and inserting it into the inside of the socket by providing the positioning slot. When the protruding plug-in block is inserted into the inside of the socket, the protruding plug-in block accurately slides into the inside of the socket along the positioning slot.
[0014] 4. The utility model provides a shrinkage groove so that the sealing ring has a shrinkage space after being compressed and shrunk, so as to avoid the sealing ring causing a large squeezing force on the display screen after compression and reduce the material used for the sealing ring. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a three-dimensional schematic diagram of the utility model;
[0016] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model;
[0017] Figure 3 For this utility model Figure 2 A is a schematic diagram of the enlarged structure of the middle part;
[0018] Figure 4 It is a partial three-dimensional schematic diagram of the housing of the utility model;
[0019] Figure 5 It is a partial three-dimensional schematic diagram of the fixing frame of the utility model.
[0020] Figure numerals: 1, housing; 2, display screen; 3, fixing frame; 4, annular groove; 5, upper flange; 6, lower flange; 7, raised plug block; 8, sealing ring; 9, shrinkage groove; 10, plug hole; 11, positioning slot. DETAILED DESCRIPTION
[0021] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.
[0022] Embodiment 1
[0023] like Figure 1-Figure 4 As shown, the utility model proposes a high-sealing and light-leakage-proof display module, comprising a shell 1 and a display screen 2. The cross-sectional view of the shell 1 is L-shaped, the display screen 2 is located inside the shell 1, and a plurality of annular grooves 4 are arranged on the top of the inner wall of the shell 1. The cross-sectional view of the annular grooves 4 is an isosceles trapezoidal shape. A sealing ring 8 is arranged inside the shell 1, and the sealing ring 8 is wrapped around the outer surface of the display screen 2. A shrinkage groove 9 is arranged on the outer surface of the sealing ring 8. The shrinkage groove 9 allows the sealing ring 8 to have a shrinkage space after being compressed and shrunk, so as to avoid the sealing ring 8 from causing a large squeezing force on the display screen 2 after compression, and reduce the sealing ring 8. Using materials, the upper surface of the sealing ring 8 is provided with an upper flange 5, and the upper flange 5 is located above the display screen 2, the upper flange 5 is in contact with the edge of the upper surface of the display screen 2, and the top of the upper flange 5 is deformed under extrusion and enters into the annular groove 4, thereby improving the sealing between the upper flange 5 and the shell 1, and the lower surface of the sealing ring 8 is provided with a lower flange 6, and the lower flange 6 is located below the display screen 2, the lower flange 6 is in contact with the edge of the lower surface of the display screen 2, and a fixed frame 3 is clamped at a position below the lower flange 6 inside the shell 1, and the fixed frame 3 is in a U-shape, so that the lower surface of the display screen 2 is exposed for heat dissipation.
[0024] When the utility model is in use, the sealing ring 8 is in contact with the outer surface of the display screen 2 on all sides, and the upper flange 5 is in contact with the edges of the upper surface of the display screen 2 on all sides. Under the extrusion, the upper flange 5 is deformed and partially enters the annular groove 4, and the lower flange 6 is in contact with the edges of the lower surface of the display screen 2 on all sides. The sealing ring 8, the upper flange 5 and the lower flange 6 jointly seal the gap between the display screen 2 and the housing 1, and the sealing performance is good, and no gap will appear due to vibration, etc., thus avoiding the occurrence of light leakage at the edge of the display screen 2, and preventing rainwater and dust from entering the interior of the display module, thereby extending the service life of the display module.
[0025] Embodiment 2
[0026] like Figure 2-Figure 5 As shown, the utility model proposes a high-sealing and anti-light leakage display module. Compared with the first embodiment, this embodiment also includes that the outer surface of the shell 1 is surrounded by holes 10 near the lower surface, the outer surface of the fixed frame 3 is surrounded by raised blocks 7, and the lower surface of the shell 1 is provided with positioning slots 11 below each of the holes 10, and the positioning slots 11 are connected with the holes 10. When the raised blocks 7 are inserted into the holes 10, the raised blocks 7 slide accurately into the holes 10 along the positioning slots 11.
[0027] In this embodiment, the fixed frame 3 is fixed inside the shell 1 by means of the socket 10 and the protruding plug block 7, and the display screen 2 is fixed inside the shell 1. When disassembling, the protruding plug block 7 and the socket 10 are separated, and the fixed frame 3 and the display screen 2 can be removed from the inside of the shell 1.
[0028] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.
Claims
1. A highly sealed and light-leakage-proof display module, comprising a housing (1) and a display screen (2), characterized in that: The display screen (2) is located inside the shell (1); a plurality of annular grooves (4) are provided on the top of the inner wall of the shell (1); a sealing ring (8) is provided inside the shell (1); an upper flange (5) is provided on the upper surface of the sealing ring (8); and the upper flange (5) is located above the display screen (2); a lower flange (6) is provided on the lower surface of the sealing ring (8); and the lower flange (6) is located below the display screen (2); and a fixing frame (3) is clamped inside the shell (1) at a position below the lower flange (6).
2. A highly sealed and light-leakage-proof display module according to claim 1, characterized in that: The cross-sectional view of the annular groove (4) is in the shape of an isosceles trapezoid.
3. The highly sealed and light-leakage-proof display module according to claim 1, characterized in that: The outer surface of the sealing ring (8) is provided with a shrinkage groove (9).
4. The highly sealed and light-leakage-proof display module according to claim 1, characterized in that: Insertion holes (10) are arranged around the outer surface of the housing (1) near the lower surface, and raised insert blocks (7) are arranged around the outer surface of the fixing frame (3).
5. The highly sealed and light-leakage-proof display module according to claim 4, characterized in that: A positioning slot (11) is provided on the lower surface of the housing (1) below each plug hole (10), and the positioning slot (11) is connected to the plug hole (10).