Light-emitting module and electronic equipment

Abstract

The utility model discloses a light-emitting module and electronic equipment, a PCB (Printed Circuit Board) lamp panel is positioned at the bottom, a lamp source on the upper surface of the PCB lamp panel adopts positive luminescence, the light of the lamp source is emitted after entering a light guide plate and being guided, and the light is reflected to the PCB lamp panel after being emitted to a diffusion film. The diffusion film is beneficial to improving uniform irradiation of light, the light reflected to the PCB lamp panel is reflected to the light-emitting panel to transmit light and emit light, the reflecting film of the annular structure intercepts the light diffused to the side edge, and the light returns to the light guide plate after multiple reflection, so that the effects of light uniformizing and light source recycling are achieved, and the service life of the light guide plate is prolonged. And meanwhile, the shadow part defect existing in the side light emitting principle is avoided, and the technical problems that the shadow part defect and the light non-uniformity defect exist when a side light emitting module is adopted are solved.

Description

Technical Field

[0001] The utility model relates to the field of optoelectronic technology, in particular to a light-emitting module and an electronic device. Background Art

[0002] Electronic products with luminous features often use side-light modules for light indication. In side-light modules, after the light reaches the light-transmitting area, a shadow part will appear, and the light is uneven. Therefore, how to solve the shadow part defects and uneven light defects existing in the side-light module is a technical problem that needs to be solved urgently by those skilled in the art. Utility Model Content

[0003] The utility model provides a light-emitting module and an electronic device, which are used to solve the technical problems of shadow part defects and uneven light defects in a side-light-emitting module.

[0004] In view of this, the first aspect of the utility model provides a light-emitting module, including a light-emitting panel and a light-guiding module, wherein the light-guiding module includes a diffusion film, a reflection film, a light-guiding plate and a PCB light board;

[0005] A light source is installed on the upper surface of the PCB light board, and a reflective ink screen printing is arranged on the upper surface of the PCB light board;

[0006] The light guide plate is arranged above the PCB light board;

[0007] The reflective film is an annular structure, the reflective film is arranged around the periphery of the light guide plate, and the reflective film protrudes from the top of the light guide plate by a preset height;

[0008] The diffusion film cover is arranged on the top of the reflection film;

[0009] The light emitting panel cover is placed on top of the diffuser film.

[0010] Optionally, the PCB light board is a hollow structure, and the light source is installed on the upper surface of the PCB light board in a surrounding arrangement.

[0011] Optionally, the light guide plate and the diffusion film both have the same hollow structure as the PCB board.

[0012] Optionally, there are multiple light sources, and the multiple light sources are evenly distributed on the upper surface of the PCB light board.

[0013] Optionally, the distance between the light source of the light-emitting panel and the PCB light board is greater than 2 mm and less than 7.5 mm.

[0014] Optionally, the light guide plate is made of PC material.

[0015] Optionally, the light source is an LED light.

[0016] The second aspect of the utility model provides an electronic device, comprising the light-emitting module of the first aspect, and also comprising a card swiping antenna and a housing with a top opening;

[0017] The light-emitting module is embedded in the shell, and the light-emitting panel of the light-emitting module is in contact with the top opening of the shell;

[0018] The card swiping antenna is arranged between the shell and the light emitting module.

[0019] The third aspect of the utility model provides another electronic device, comprising the light-emitting module described in the first aspect, and further comprising a fingerprint module and a housing with a top opening;

[0020] The light-emitting module is embedded in the shell, and the light-emitting panel of the light-emitting module is in contact with the top opening of the shell;

[0021] A fingerprint recognition area is arranged in the middle of the light-emitting panel of the light-emitting module, and the fingerprint module is arranged between the shell and the light-emitting module.

[0022] A fourth aspect of the utility model provides another electronic device, comprising the light-emitting module described in the first aspect, and further comprising a fingerprint module, a card swiping antenna, and a housing with a top opening;

[0023] The light-emitting module is embedded in the shell, and the light-emitting panel of the light-emitting module is in contact with the top opening of the shell;

[0024] A fingerprint recognition area is provided in the middle of the light-emitting panel of the light-emitting module, and the fingerprint module is provided between the housing and the light-emitting module;

[0025] The card swiping antenna is arranged between the fingerprint module and the housing.

[0026] It can be seen from the above technical solutions that the light-emitting module and electronic device provided by the utility model have the following advantages:

[0027] The utility model provides a light-emitting module, a PCB light board is located at the bottom, and the light source on the upper surface of the PCB light board adopts positive light emission. The light from the light source enters the light guide plate and then emits. The light hits the diffusion film and then reflects to the PCB light board. The diffusion film is beneficial to improving the uniform irradiation of light. The light reflected to the PCB light board is then reflected to the light-emitting panel for light transmission. The reflective film with an annular structure intercepts the light diverging to the side and returns to the light guide plate after multiple reflections, thereby playing the role of uniform lighting and light source recovery. At the same time, it also avoids the shadow part defect existing in the side lighting principle, and solves the technical problems of shadow part defect and uneven lighting defect existing in the side lighting module.

[0028] The electronic equipment provided by the utility model is composed of the light-emitting module provided by the utility model, and has the same technical effect as the light-emitting module provided by the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 This is a structural schematic diagram of a light-emitting module provided in the utility model;

[0031] Figure 2 This is a schematic diagram of a first structure of an electronic device provided in the utility model;

[0032] Figure 3 A second structural schematic diagram of an electronic device provided in the utility model;

[0033] Figure 4 This is a third structural schematic diagram of an electronic device provided in the utility model;

[0034] Wherein, the accompanying drawings are marked as follows:

[0035] 1. Light-emitting panel; 2. Light guide module; 2-1. Diffusion film; 2-2. Reflection film; 2-3. Light guide plate; 2-4. PCB light board; 2-5. Light source; 3. Housing; 4. Card swiping antenna; 5. Fingerprint module. DETAILED DESCRIPTION

[0036] In order to enable those skilled in the art to better understand the solution of the utility model, 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 only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] For easier understanding, see Figure 1 The utility model provides an embodiment of a light-emitting module, comprising a light-emitting panel 1 and a light-guiding module 2, wherein the light-guiding module 2 comprises a diffusion film 2-1, a reflection film 2-2, a light-guiding plate 2-3 and a PCB light board 2-4;

[0038] A light source 2-5 is installed on the upper surface of the PCB light board 2-4, and a reflective ink screen printing is provided on the upper surface of the PCB light board 2-4;

[0039] The light guide plate 2-3 is arranged above the PCB light board 2-4;

[0040] The reflective film 2-2 is a ring-shaped structure, and the reflective film 2-2 is arranged around the outer periphery of the light guide plate 2-3, and the reflective film 2-2 protrudes from the top of the light guide plate 2-3 by a preset height;

[0041] The diffusion film 2-1 is covered on the top of the reflection film 2-2;

[0042] The light emitting panel 1 is covered on the top of the diffusion film 2 - 1 .

[0043] It should be noted that the PCB light board 2-4 is located at the bottom, and the light source 2-5 is installed on the upper surface of the PCB light board 2-4. The PCB light board 2-4 adopts the positive light emission principle to emit light to the light guide plate 2-3 from the front. The light source 2-5 is an LED lamp.

[0044] In the utility model, the reflective film 2-2 is an annular structure, and the reflective film 2-2 is arranged around the outer periphery of the light guide plate 2-3, and the reflective film 2-2 protrudes from the top of the light guide plate 2-3 by a preset height, which can intercept the light diverging outward and recover the light source. The reflective film 2-2 with an annular structure is designed to recover at least 20% of the light source, thereby improving the efficiency of light use, and achieving high luminous efficiency with low power consumption under the condition of equal area luminous brightness. At the same time, after being intercepted by the reflective film 2-2, the light is reflected back to the light guide plate 2-3 through multiple reflections. The various light guide points of different densities and sizes in the light guide plate 2-3 can make the light guide plate 2-3 emit light evenly, and can achieve the effect of uniform lighting.

[0045] The utility model provides a light-emitting module, wherein a PCB light board 2-4 is located at the bottom, and a light source 2-5 on the upper surface of the PCB light board 2-4 adopts positive light emission. The light from the light source 2-5 enters the light guide plate 2-3 for light guidance and then is emitted. The light is emitted to the diffusion film 2-1 and then is reflected to the PCB light board 2-4. The diffusion film 2-1 is beneficial to improving the uniform irradiation of light. The light reflected to the PCB light board 2-4 is then reflected to the light-emitting panel 1 for light transmission. The reflective film 2-2 with an annular structure intercepts the light diverging to the side and returns to the light guide plate 2-3 after multiple reflections, thereby playing the role of uniform lighting and light source recovery. At the same time, it also avoids the shadow part defect existing in the side lighting principle, and solves the technical problems of the shadow part defect and the uneven lighting defect existing in the side lighting module.

[0046] In one embodiment, the PCB light board 2-4 is a hollow structure, the light source 2-5 is installed on the upper surface of the PCB light board 2-4 in a surrounding arrangement, and the light guide plate 2-3 and the diffusion film 2-1 both have the same hollow structure as the PCB board. The design of the hollow structure can save material costs on the one hand, and on the other hand, it is conducive to the light of the light source 2-5 to be projected onto the light-emitting panel 1 to ensure the intensity of the light. The number of light sources 2-5 is set to multiple, and multiple light sources 2-5 are evenly distributed on the upper surface of the PCB light board 2-4, which can further improve the light uniformity of the light-emitting panel 1. For the existing positive light-emitting direct structure, the distance between the light-emitting panel and the lamp must be at least 7.5mm to prevent the lamp eye from being displayed, and the structure is not compact. The light-emitting module in the utility model has a compact spatial structure, and when the distance between the light-emitting panel 1 and the light source 2-5 of the PCB light board 2-4 is 2mm~7.5mm, the lamp eye can be prevented from being displayed. It breaks the limitation that the distance between the light-emitting panel and the lamp of the positive light-emitting direct structure must be at least 7.5mm to prevent the lamp eye from being displayed.

[0047] In one embodiment, the light guide plates 2-3 are made of PC material, which has good light-guiding performance and good plasticity, and is conducive to printing light guide points by laser engraving, V-shaped cross grid engraving, and UV screen printing technology.

[0048] For easier understanding, see Figure 2 The utility model provides an embodiment of an electronic device, including the light-emitting module of the utility model, and also including a card swiping antenna 4 and a shell 3 with a top opening. The light-emitting module is embedded in the shell 3, and the light-emitting panel 1 of the light-emitting module fits the top opening of the shell 3. The card swiping antenna 4 is arranged between the shell 3 and the light-emitting module. The shell 3 is a metal shell. In the embodiment of the utility model, the light-emitting module and the card swiping antenna 4 of the utility model are used in combination and are configured together in the shell 3 with a top opening, and are applied to scenes such as smart door locks and attendance.

[0049] For easier understanding, see Figure 3 The utility model provides an embodiment of an electronic device, including a light module in which the PCB light board 2-4 provided in the utility model is a hollow structure, the light source 2-5 is installed on the upper surface of the PCB light board 2-4 in a surrounding arrangement, the light guide plate 2-3 and the diffusion film 2-1 both have the same hollow structure as the PCB board, and also includes a fingerprint module 5 and a shell 3 with an opening on the top, the light module is embedded in the shell 3, the light panel 1 of the light module is fitted with the top opening of the shell 3, a fingerprint recognition area is provided in the middle of the light panel 1 of the light module, and the fingerprint module 5 is provided between the shell 3 and the light module. The shell 3 is a metal shell. In the embodiment of the utility model, the light module and the fingerprint module 5 in the utility model are used in combination, and are configured together in the shell 3 with an opening on the top, and are applied to scenes such as smart door locks and attendance.

[0050] For easier understanding, see Figure 4 The utility model provides an embodiment of an electronic device, including a light module in which the PCB light board 2-4 provided in the utility model is a hollow structure, the light source 2-5 is installed on the upper surface of the PCB light board 2-4 in a surrounding arrangement, the light guide plate 2-3 and the diffusion film 2-1 both have the same hollow structure as the PCB board, and also includes a fingerprint module 5, a card swiping antenna 4 and a shell 3 with an opening on the top, the light module is embedded in the shell 3, the light panel 1 of the light module is fitted with the top opening of the shell 3, a fingerprint recognition area is arranged in the middle of the light panel 1 of the light module, the fingerprint module 5 is arranged between the shell 3 and the light module, and the card swiping antenna 4 is arranged between the fingerprint module 5 and the shell 3. The shell 3 is a metal shell. In the embodiment of the utility model, the light module, the fingerprint module 5 and the card swiping antenna 4 in the utility model are used in combination, and are configured together in the shell 3 with an opening on the top, and are applied to scenes such as smart door locks and attendance.

[0051] The electronic equipment provided by the utility model is composed of the light-emitting module provided by the utility model, and has the same technical effect as the light-emitting module provided by the utility model.

[0052] As described above, the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A light emitting module, characterized in that: It includes a light-emitting panel and a light guide module, and the light guide module includes a diffusion film, a reflection film, a light guide plate and a PCB light board; A light source is installed on the upper surface of the PCB light board, and a reflective ink screen printing is arranged on the upper surface of the PCB light board; The light guide plate is arranged above the PCB light board; The reflective film is an annular structure, the reflective film is arranged around the periphery of the light guide plate, and the reflective film protrudes from the top of the light guide plate by a preset height; The diffusion film cover is arranged on the top of the reflection film; The light emitting panel cover is placed on top of the diffuser film.

2. The light emitting module according to claim 1, characterized in that: The PCB light board is a hollow structure, and the light source is installed on the upper surface of the PCB light board in a surrounding arrangement.

3. The light emitting module according to claim 2, characterized in that: Both the light guide plate and the diffusion film have the same hollow structure as the PCB board.

4. The light emitting module according to claim 2, characterized in that: There are multiple light sources, and the multiple light sources are evenly distributed on the upper surface of the PCB light board.

5. The light emitting module according to claim 3, characterized in that: The distance between the light source of the light panel and the PCB light board is greater than 2 mm and less than 7.5 mm.

6. The light emitting module according to claim 1, characterized in that: The light guide plate is made of PC material.

7. The light emitting module according to claim 1, characterized in that: The light source is LED light.

8. An electronic device, characterized in that: The light-emitting module according to any one of claims 1 to 7, further comprising a card swiping antenna and a housing with an opening at the top; The light-emitting module is embedded in the shell, and the light-emitting panel of the light-emitting module is in contact with the top opening of the shell; The card swiping antenna is arranged between the shell and the light emitting module.

9. An electronic device, characterized in that: The light-emitting module according to any one of claims 3 to 7, further comprising a fingerprint module and a housing with an opening at the top; The light-emitting module is embedded in the shell, and the light-emitting panel of the light-emitting module is in contact with the top opening of the shell; A fingerprint recognition area is arranged in the middle of the light-emitting panel of the light-emitting module, and the fingerprint module is arranged between the shell and the light-emitting module.

10. An electronic device, characterized in that: The light-emitting module according to any one of claims 3 to 7 further comprises a fingerprint module, a card swiping antenna and a housing with a top opening; The light-emitting module is embedded in the shell, and the light-emitting panel of the light-emitting module is in contact with the top opening of the shell; A fingerprint recognition area is provided in the middle of the light-emitting panel of the light-emitting module, and the fingerprint module is provided between the housing and the light-emitting module; The card swiping antenna is arranged between the fingerprint module and the housing.

Images