Backlight assembly and intelligent lock
By using transparent substrate, light blocking film, light-transmitting film and groove-embedded lamp beads in the backlight assembly of the smart lock, the problems of large number and high cost of smart lock lamp beads are solved, and a lower cost and more uniform backlight effect is achieved.
Patent Information
- Application Number
- CN202421500803.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-27
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-06-27
AI Technical Summary
In the light emission method of smart locks, the number of lamp beads is high, resulting in higher costs and requires two structural parts: reflective cup and uniform light film.
A backlight component is adopted, including a transparent substrate, a light blocking film, a light blocking film and a lamp bead. The transparent substrate is provided with grooves on the surface, and the lamp beads are embedded in the grooves. The light transmits on the light blocking film, and light emits from the light blocking pattern, so that the light blocking pattern is backlighted.
The number of use of lamp beads is reduced, the cost is reduced, and the uniform light film is eliminated, which improves the overall brightness uniformity of the transparent substrate.
Smart Images
Figure CN222634446U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of smart locks, and in particular to a backlight assembly and a smart lock. Background Art
[0002] A smart lock usually includes a reflective cup, a light board, a light-diffusing film and a cover plate with a digital pattern. The light board is provided with a through hole corresponding to the digital pattern. The lamp beads are installed on one side of the light board. The lamp beads shine light on the reflective cup. The reflective cup reflects the light through the through hole onto the light-diffusing film and then onto the digital pattern, providing backlight for the digital pattern.
[0003] The existing lighting method of smart locks is to reflect all the light from multiple lamp beads onto the uniform light film through a reflective cup. After passing through the uniform light film, the light shines on the digital pattern, making the digital pattern backlit. The lamp beads correspond to the digital pattern one by one, and a large number of lamp beads are used.
[0004] The number of lamp beads is large, and at least two structural parts, a reflective cup and a homogenizing film, are required, resulting in high costs. Utility Model Content
[0005] In view of this, the utility model provides a backlight assembly and a smart lock to solve the problem of reducing the number of lamp beads and lowering the cost.
[0006] In the first aspect, the utility model provides a backlight assembly, including: a transparent substrate, a light-blocking film, a light-transmitting film and lamp beads, wherein the surface of the transparent substrate is provided with grooves; the light-blocking film is provided with a light-transmitting pattern, the light-blocking film is covered on the opposite side of the transparent substrate where the grooves are provided; the light-transmitting film is covered on the light-blocking film; and the lamp beads are embedded in the grooves.
[0007] Beneficial effect: The lamp beads are arranged in the grooves, and the lamp beads emit light to illuminate the entire transparent substrate, making the entire transparent substrate a luminous body. The light is emitted from the light-transmitting pattern opened by the light-blocking film, so that the light-transmitting pattern is backlit. The transparent substrate has the effect of light uniformity, eliminating the light uniformity film, and there is no need for the lamp beads to correspond one-to-one with the light-transmitting pattern, which can reduce the number of lamp beads used and reduce costs.
[0008] In an optional embodiment, the groove is configured to be in a long strip shape, and a plurality of lamp beads are provided, and the plurality of lamp beads are arranged in the groove along the length direction of the groove.
[0009] The groove is arranged in a strip shape, and a plurality of lamp beads are arranged and installed in the groove, so that the lamp beads can illuminate the entire transparent substrate, thereby improving the uniformity of the overall brightness of the transparent substrate.
[0010] In an optional embodiment, a reflector is further included. The reflector is arranged on a side of the transparent substrate where a groove is formed. The groove is arranged beside the reflector.
[0011] The groove is arranged toward one side of the transparent substrate, which reserves a position for the setting of the reflector. The reflector can reflect all the light in the transparent substrate facing the groove to the side of the light-blocking film, thereby improving the backlight brightness and effect of the light-transmitting pattern.
[0012] In an optional embodiment, the reflective element is reflective ink, and the reflective ink is coated on the transparent substrate by a silk screen printing process.
[0013] The screen printing process is simple, and the reflective ink is coated on the transparent substrate through the screen printing process, which is highly efficient and low-cost.
[0014] In an optional embodiment, it also includes a light board, which is connected to the transparent substrate and has a plurality of lamp beads mounted on the light board.
[0015] A plurality of lamp beads are mounted on a lamp board, and the lamp board is mounted on a transparent substrate. The lamp board can also improve the light reflection effect, so that the light in the transparent substrate is emitted from one side of the light-blocking film.
[0016] In an optional implementation, the light emitting direction of the lamp bead is toward the side of the transparent substrate.
[0017] The lamp bead is located in the groove, which is equivalent to being located inside the light-emitting matrix. The light-emitting direction of the lamp bead is toward the side of the transparent matrix, which can make the entire transparent matrix become a uniform light-emitting body.
[0018] In an optional implementation, the light-transmitting pattern includes a plurality of digital patterns, and the plurality of digital patterns are arranged in sequence on the light-blocking film.
[0019] Multiple different digital pattern combinations can form different passwords.
[0020] In an optional embodiment, the material of the transparent substrate is plastic.
[0021] Plastics are low cost and easy to process.
[0022] In an optional implementation, the light-transmitting film is a hard anti-scratch film.
[0023] It is light-transmissive and, as the outermost layer, has good anti-scratch effect.
[0024] In a second aspect, the utility model further provides a smart lock, comprising: a lock shell and a backlight assembly, wherein the lock shell is provided with a display hole for displaying a light-transmitting pattern, and a transparent substrate is mounted on the lock shell. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0026] Figure 1 This is a schematic diagram of the front structure of a backlight assembly according to an embodiment of the utility model;
[0027] Figure 2 This is a schematic diagram of the back structure of a backlight assembly according to an embodiment of the utility model;
[0028] Figure 3 for Figure 2 Sectional view along AA;
[0029] Figure 4 for Figure 3 A partial enlarged schematic diagram of B in the middle;
[0030] Figure 5 It is a structural schematic diagram of the back screen printing area of a backlight assembly according to an embodiment of the utility model.
[0031] Description of reference numerals:
[0032] 1. Transparent substrate; 2. Grooves; 3. Translucent patterns; 4. Lamp beads; 5. Reflectors; 6. Light board. DETAILED DESCRIPTION
[0033] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.
[0034] Combine the following Figures 1 to 5 , describing an embodiment of the utility model.
[0035] According to an embodiment of the present utility model, on one hand, a backlight assembly is provided, including a transparent substrate 1 , a light-blocking film, a light-transmitting film and lamp beads 4 .
[0036] Specifically, a groove 2 is provided on the surface of the transparent substrate 1 ; a light-transmitting pattern 3 is provided on the light-blocking film, the light-blocking film covers the opposite surface of the transparent substrate 1 where the groove 2 is provided; the light-transmitting film covers the light-blocking film; and the lamp bead 4 is embedded in the groove 2 .
[0037] In some embodiments, the transparent substrate 1 can be made of glass or transparent resin material, and the specific structure can be a rectangular parallelepiped, a polygonal prism, a cylinder, etc.; the light-blocking film can be made of a non-transparent resin film, and the light-transmitting pattern 3 can be formed on the non-transparent resin film through an etching process to form transparent lines, and the transparent lines are the same as the lines of the pattern, so that a light-blocking film with a light-transmitting pattern 3 can be formed.
[0038] In this embodiment, the lamp bead 4 of this embodiment is arranged in the groove 2, and the lamp bead 4 emits light to illuminate the entire transparent substrate 1, so that the entire transparent substrate 1 becomes a light-emitting body, and the light is emitted from the light-transmitting pattern 3 opened by the light-blocking film, so that the light-transmitting pattern 3 is backlit. The transparent substrate 1 has the effect of uniform light distribution, eliminating the light-uniform film, and there is no need for the lamp bead 4 to correspond one-to-one with the light-transmitting pattern 3, which can reduce the number of lamp beads 4 used and reduce costs.
[0039] In some embodiments, the light-blocking film may be attached to the transparent substrate, and the light-transmitting film may be attached to the light-blocking film.
[0040] In other embodiments, the transparent substrate 1, the light-blocking film and the light-transmitting film may also be integrally formed by injection molding.
[0041] In one embodiment, the groove 2 is configured to be a long strip, and a plurality of lamp beads 4 are provided. The plurality of lamp beads 4 are arranged in the groove 2 along the length direction of the groove 2. The groove 2 is configured to be a long strip, and a plurality of lamp beads 4 are arranged and installed in the groove 2, so that the lamp beads 4 can illuminate the entire transparent substrate 1, thereby improving the uniformity of the overall brightness of the transparent substrate 1.
[0042] In some embodiments, the shape of the groove 2 may also be an S-shaped curve to improve the uniformity of light in the entire transparent substrate 1 .
[0043] In some embodiments, the principle of the light-homogenizing film is to pass the light through a material that is difficult to penetrate, such as quartz glass or a thin film, so that the brightness distribution of the light becomes uniform. Specifically, the principle of the light-homogenizing film is achieved through interference. When the light passes through a light-homogenizing film of a certain thickness, the light will be reflected and transmitted in the film, thereby forming an interference phenomenon. Due to the difference in film thickness and reflection coefficient, different light wavelengths will interfere with each other and produce different phases, ultimately making the brightness distribution of the light uniform.
[0044] In one embodiment, a reflective member 5 is further included. The reflective member 5 is arranged on a side of the transparent substrate 1 where a groove 2 is provided. The groove 2 is arranged beside the reflective member, which can reserve a position for the reflective member 5. The reflective member 5 can reflect all the light in the transparent substrate 1 facing the groove 2 to the side of the light-blocking film, thereby improving the backlight brightness and effect of the light-transmitting pattern 3.
[0045] In one embodiment, the reflective element 5 is reflective ink, and the reflective ink is coated on the transparent substrate 1 by a silk screen printing process. The silk screen printing process is simple, and the reflective ink is coated on the transparent substrate 1 by the silk screen printing process with high efficiency and low cost.
[0046] In other embodiments, the silk screen printing process is to design different hollow patterns on the silk screen, align the hollow patterns with corresponding positions of the transparent substrate 1, and use a scraper to print the reflective ink on the transparent substrate 1 through the hollow patterns. The operation is simple.
[0047] In some embodiments, the reflective element 5 can be made of reflective spray-painted cloth, which is a reflective material that can be sprayed on the transparent substrate 1, which is more convenient.
[0048] In other embodiments, the reflective element 5 may also be made of reflective film, which is a retroreflective material that has been made into a film and can be directly used. The reflective film is made using glass bead technology, microprism technology, synthetic resin technology, thin film technology and coating technology.
[0049] In one embodiment, a light board 6 is also included, which is connected to the transparent substrate 1. Multiple lamp beads 4 are installed on the light board 6. The light board 6 is installed on the transparent substrate 1. The light board 6 can also improve the reflection effect of light, so that the light in the transparent substrate 1 is emitted from one side of the light-blocking film.
[0050] In some embodiments, a layer of reflective film may be attached to the light board 6 to improve the reflective effect.
[0051] In one embodiment, the light emitting direction of the lamp bead 4 is toward the side of the transparent substrate 1. The lamp bead 4 is located in the groove 2, which is equivalent to being located inside the light-emitting substrate. The light emitting direction of the lamp bead 4 is toward the side of the transparent substrate 1, which can make the entire transparent substrate 1 become a uniform light-emitting body.
[0052] In one embodiment, the light-transmitting pattern 3 includes a plurality of digital patterns, which are arranged in sequence on the light-blocking film, and a plurality of different digital pattern combinations can form different passwords.
[0053] In some embodiments, the light-transmitting pattern 3 also includes a “*” pattern and a “#” pattern to form more password combinations.
[0054] In one embodiment, the transparent substrate 1 is made of plastic, which has low cost and is easy to process.
[0055] In one embodiment, the light-transmitting film is a hard anti-scratch film that is light-transmitting and, as the outermost layer, has a good anti-scratch effect.
[0056] According to an embodiment of the present utility model, on the other hand, a smart lock is provided, including a lock shell and a backlight assembly, the lock shell is provided with a display hole for displaying a light-transmitting pattern, and a transparent substrate 1 is mounted on the lock shell.
[0057] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.
Claims
1. A backlight assembly, characterized in that: include: A transparent substrate (1), wherein a groove (2) is formed on the surface of the transparent substrate (1); A light-blocking film, on which a light-transmitting pattern (3) is provided, and the light-blocking film covers the surface of the transparent substrate (1) opposite to the surface on which the groove (2) is provided; A light-transmitting film, the light-transmitting film being covered on the light-blocking film; A lamp bead (4), wherein the lamp bead (4) is embedded in the groove (2).
2. A backlight assembly according to claim 1, characterized in that: The groove (2) is arranged in a long strip shape, a plurality of the lamp beads (4) are arranged, and the plurality of the lamp beads (4) are arranged in the groove (2) along the length direction of the groove (2).
3. The backlight assembly according to claim 2, characterized in that: It also comprises a reflective member (5), wherein the reflective member (5) is arranged on a side of the transparent substrate (1) where the groove (2) is provided, and the groove (2) is arranged at a side position of the reflective member (5).
4. The backlight assembly according to claim 3, characterized in that: The reflective element (5) is reflective ink, and the reflective ink is coated on the transparent substrate (1) by a silk screen printing process.
5. The backlight assembly according to claim 3, characterized in that: It also comprises a light board (6), wherein the light board (6) is connected to the transparent substrate (1), and a plurality of the light beads (4) are mounted on the light board (6).
6. The backlight assembly according to claim 5, characterized in that: The light emitting direction of the lamp bead (4) is toward the side surface of the transparent substrate (1).
7. The backlight assembly according to claim 1, characterized in that: The light-transmitting pattern (3) comprises a plurality of digital patterns, and the plurality of digital patterns are arranged in sequence on the light-blocking film.
8. The backlight assembly according to claim 1, characterized in that: The material of the transparent substrate (1) is plastic.
9. The backlight assembly according to claim 1, characterized in that: The light-transmitting film is a hard anti-scratch film.
10. A smart lock, characterized in that: include: A lock shell and a backlight assembly as claimed in any one of claims 1 to 9, wherein the lock shell is provided with a display hole for displaying the light-transmitting pattern (3), and the transparent substrate (1) is mounted on the lock shell.