CN212966898U - Face guard and LED display screen - Google Patents
Face guard and LED display screen Download PDFInfo
- Publication number
- CN212966898U CN212966898U CN202021980064.XU CN202021980064U CN212966898U CN 212966898 U CN212966898 U CN 212966898U CN 202021980064 U CN202021980064 U CN 202021980064U CN 212966898 U CN212966898 U CN 212966898U
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- light
- mask
- eaves
- lamp
- face guard
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Abstract
The utility model is suitable for a LED technical field provides a face guard and LED display screen, be equipped with an at least lamp hole on the face guard, the face guard is every the position of the outer drill way side wall of lamp hole all extends the eaves towards the first direction, the eaves is in projection at least part on the face guard falls into the correspondence in the lamp hole, so that the light that sends in the lamp hole is through the eaves shelters from the back orientation the first direction jets out. The utility model discloses an extend the cover eaves on the face guard to the effect that is in the light that utilizes the cover eaves makes light jet out along the assigned direction, and then can reach the effect of the downward light-emitting of slope, reduces LED light pollution, because the adoption carries out improved design to the face guard and reaches the effect that reduces light pollution, avoids LED lamp pearl slope installation, guarantees the yield of lamp pearl installation, and then guarantees the production efficiency of LED display screen.
Description
Technical Field
The utility model belongs to the technical field of the LED, especially, relate to a face guard and LED display screen.
Background
An LED (Light Emitting Diode) is called a fourth-generation illumination Light source or a green Light source, has the characteristics of energy saving, environmental protection, long service life, small volume and the like, and can be widely applied to the fields of various indications, display, decoration, backlight sources, general illumination, urban night scenes and the like.
However, light pollution problems exist in light sources, LED light sources are no exception, and light pollution has certain harm, so that how to effectively reduce light pollution in specific use becomes a key point. Among the prior art, some manufacturers can choose to arrange the downward inclination of the LED lamp beads in order to reduce the LED light pollution, and the module face cover is also installed at a corresponding inclination angle, so that the effect of downward light emission in the inclined direction is achieved, and the LED light pollution is reduced.
However, the problem that above-mentioned scheme exists is that lamp pearl slope mounting process is not mature, leads to in the middle of the actual preparation process, and the yield of lamp pearl slope installation is lower, seriously influences the production efficiency of LED display screen.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a face guard and LED display screen aims at solving the current technical problem who has serious influence production efficiency of mode existence that solves LED light pollution.
The embodiment of the utility model provides a realize like this, a face guard, be equipped with an at least lamp hole on the face guard, the face guard is every the position of the outer drill way side wall of lamp hole all extends the eaves towards the first direction, the eaves is in projection at least part on the face guard falls into correspondingly in the lamp hole, so that the light that sends in the lamp hole is through the eaves shelters from the back orientation the first direction jets out.
Furthermore, the face shield extends outwards from a side wall part at the position of the edge of the outer opening of the lamp hole, and the hood eaves extend out from the tail end of the side wall part towards the first direction.
Still further, the side wall portion is arranged around the lamp hole, and an opening is formed in one side of the side wall portion facing the first direction.
Further, the projection of the visor on the face shield does not cross the center of the corresponding lamp hole.
Furthermore, the first direction is away from the top end of the mask and forms an included angle with the mask.
Furthermore, the face mask is provided with a plurality of lamp holes which are arranged in an array along the length direction and the height direction of the face mask.
Furthermore, an included angle between surfaces of the upper and lower adjacent cover eaves tangent to the light is located in the included angle, and the light-emitting visual angle of the lamp hole is located in the included angle.
Furthermore, a light blocking part extends from the position of the face mask between the outer openings of the two adjacent lamp holes up and down, and the outer side surface of the light blocking part is coplanar with the surface of the cover eaves below the light blocking part, which is tangent to the light.
Furthermore, a plurality of recesses are arranged on the outer side surface of the light blocking part.
The utility model discloses another aspect still provides a LED display screen, including the drain pan, set up in PCB board in the drain pan, set up in a positive at least LED lamp pearl of PCB board and lid are located the positive face guard of drain pan, the face guard is foretell face guard, LED lamp pearl with the lamp hole on the face guard sets up one to one.
The utility model discloses the beneficial effect who reaches: through extending the cover eaves on the face guard to the effect that is in the light that utilizes the cover eaves makes light jet out along the specified direction, and then can reach the effect of the downward light-emitting of slope, reduces LED light pollution, because the adoption improves the design to the face guard and reaches the effect that reduces light pollution, avoids LED lamp pearl slope installation, guarantees the yield of lamp pearl installation, and then guarantees the production efficiency of LED display screen.
Drawings
FIG. 1 is a cross-sectional view of a mask according to a first embodiment of the present invention;
fig. 2 is a perspective structural view of a mask in the second embodiment of the present invention;
FIG. 3 is a sectional view of a mask according to a second embodiment of the present invention;
fig. 4 is a cross-sectional structure diagram of an LED display screen in the third embodiment of the present invention;
fig. 5 is a view of a practical application scene of an LED display screen in an embodiment of the present invention;
FIG. 6 is a diagram of a practical application scenario of a conventional LED display screen;
fig. 7 is another practical application scene diagram of the LED display screen in the embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The LED lamp bead is arranged in a downward inclined mode in the prior art, and the module face cover is installed at a corresponding inclined angle, so that the effect of inclined downward light emitting is achieved, and the LED light pollution is reduced. However, the current lamp bead inclined installation process is not mature, so that the yield of the lamp bead inclined installation is low in the actual preparation process, and the production efficiency of the LED display screen is seriously influenced. Therefore, the utility model aims to provide a face guard and contain LED display screen of this face guard to through extending the cover eaves on the face guard, reach the effect of slope light-emitting downwards with the effect that is in the light that utilizes the cover eaves, avoid LED lamp pearl slope installation, guarantee the yield of lamp pearl installation, and then guarantee the production efficiency of LED display screen.
Example one
Referring to fig. 1, a mask 10 according to a first embodiment of the present invention is shown, which is provided with at least one light hole 11, the mask 10 extends an eaves 12 towards a first direction a at a position of an outer opening side wall of each light hole 11, and a projection of the eaves 12 on the mask 10 at least partially falls into the corresponding light hole 11, so that light emitted from the light hole 11 is emitted towards the first direction a after being shielded by the eaves 12.
This embodiment is in order to reach the effect of the downward light-emitting of slope, and first direction A specifically is for deviating from the top of face guard 10 and be the contained angle setting with face guard 10, covers eaves 12 promptly and extends along the decurrent direction of slope to the light that jets out in the messenger hole 11 is sent downwards through slope after covering eaves 12 and sheltering from, reaches the effect of the downward light-emitting of slope. However, it is understood that the first direction a is not limited thereto, and in other embodiments, the first direction a may be adjusted according to other light emitting effects.
Specifically, in the present embodiment, the face mask 10 extends outward from the side wall portion 13 at the position of the outer opening edge of the lamp hole 11, and the visor 12 extends from the end of the side wall portion 13 toward the first direction a. The side wall portion 13 is disposed around the lamp hole 11, and an opening 131 is disposed on one side of the side wall portion 13 facing the first direction a, that is, the side wall portion 13 and the face mask 10 form a half-enclosed light blocking structure, so that light emitted from the lamp hole 11 can only be emitted toward the first direction a through the opening 131, light is effectively prevented from being emitted from other portions, and light pollution is reduced.
By way of example and not limitation, in this embodiment, the plurality of light holes 11 are arranged in an array along the length direction and the height direction of the face mask 10, each light hole 11 extends out of the face mask 10 at a corresponding position above the light hole 11 in the same manner, and an included angle between surfaces, tangent to light, of the upper and lower adjacent two eaves 12 is a light-emitting visual angle of the light hole 11 located in the included angle, as shown in fig. 1, that is, the light-emitting visual angle of the light hole 11 between the two adjacent eaves 12 is defined by the upper and lower adjacent two eaves 12 in this embodiment, so that a required visual angle is achieved, a lower shielding structure does not need to be manufactured below the light hole 11 to limit the lower visual angle, the structure is simplified, and the cost is reduced.
In addition, in order to have a better light emitting effect, the projection of the cover eaves 12 on the face mask 10 does not cross the center of the corresponding lamp hole 11, and because the subsequent LED lamp beads are generally arranged in the middle of the lamp hole 11, the light emitting of the lamp hole 11 can still have an upper visual angle, so that the light emitting is avoided from all downward, and the light pollution is controlled on the premise of ensuring the light emitting effect. As shown in fig. 1, the upper viewing angle a is much smaller than the lower viewing angle b, the upper viewing angle a and the lower viewing angle b jointly form the light-emitting visual angle of the lamp hole 11, and the whole visible viewing angle is inclined downward, so that the light pollution is effectively controlled. The upper viewing angle a is an included angle between a surface of the cover brim 12 above the lamp hole 11, which is tangent to the light, and the central axis of the lamp hole 11, and the lower viewing angle b is an included angle between a surface of the cover brim 12 below the lamp hole 11, which is tangent to the light, and the central axis of the lamp hole 11. In some alternative embodiments, the distance (minimum distance) between the projection of the visor 12 on the face mask 10 and the center of the lamp hole 11 is preferably controlled to be between 0.5 mm and 1.5mm, i.e. close to the center of the lamp hole 11, so that half of the lamp hole area is covered, and the upper viewing angle a is between 2 ° and 5 °, in a preferred embodiment, the upper viewing angle a is 3 ° and the lower viewing angle b is 65 °.
When actually making, the cover eaves 12 and the side wall portion 13 that every lamp hole 11 side wall set up all along with face guard 10 integrated into one piece, improve production efficiency, this face guard 10 simple structure in addition, the mould shaping need not back-off or slide, and the mould degree of difficulty is lower. The mask 10 is preferably made of opaque material, such as plastic, metal, etc., and can be customized according to different requirements.
To sum up, face guard 10 in the middle of the embodiment is through extending the eaves 12 on face guard 10 to the effect of being in the light that utilizes the eaves 12 makes light jet out along the specified direction, and then can reach the effect of the downward light-emitting of slope, reduces LED light pollution, owing to adopt to carry out the improved design to face guard 10 and reach the effect that reduces light pollution, avoids the slope installation of LED lamp pearl, guarantees the yield of lamp pearl installation, and then guarantees the production efficiency of LED display screen.
Example two
Referring to fig. 2-3, a mask 10 according to a second embodiment of the present invention is shown, in which the mask 10 of the present embodiment is different from the mask 10 of the first embodiment in that:
the mask 10 extends a light blocking portion 14 at a position between outer apertures of two adjacent lamp holes 11, and an outer side surface of the light blocking portion 14 is coplanar with a surface, tangent to light, of the mask brim 12 below the light blocking portion 14 (as shown in fig. 3), that is, the light blocking portion 14 does not affect a lower viewing angle of the lamp holes 11, but can uniformly disperse light below the lamp holes 11, so that the phenomenon of uneven brightness caused by excessive gathering of light below the lamp holes 11 is avoided.
In addition, the outer side surface of the light blocking part 14 is provided with a plurality of recesses 141, the specific shape and size of the recesses 141 are not limited, and the recesses 141 can achieve the purposes of light weight and material saving. In actual manufacturing, the light blocking part 14 is also preferably integrally formed with the mask 10, thereby improving production efficiency.
It should be noted that the implementation principle and some advantageous effects of the device in the second embodiment of the present invention are the same as those of the device in the first embodiment, and therefore, the present embodiment is mentioned, and reference may be made to the application contents in the first embodiment.
EXAMPLE III
Referring to fig. 4, an LED display screen 100 according to a third embodiment of the present invention is shown, including a bottom case 20, a PCB board 30 disposed in the bottom case 20, at least one LED lamp bead 40 disposed on a front surface of the PCB board 30, and a mask 10 covering a front surface of the bottom case 20, wherein the mask 10 is the mask 10 according to any one of the embodiments 1-2, and the LED lamp beads 40 and the lamp holes 11 on the mask 10 are disposed in a one-to-one manner.
As a practical application scenario, as shown in fig. 5, if the LED display screen 100 in this embodiment is installed in a building a, residents higher than the LED display screen 100 in an opposite building B can be prevented from being influenced by the light emission of the display screen, and only residents lower than the LED display screen 100 are influenced, and effective control is provided for the affected residents with a proper control upper viewing angle. As shown in fig. 6, if a building a is installed with a conventional display screen 200, because the upper viewing angle and the lower viewing angle of the conventional display screen 200 are large, residents in the opposite building B who are lower than and higher than the display screen are affected by the light emission of the display screen, and when the problem is serious, a civil dispute may be generated, which may cause dissonance of the society.
As another practical application scenario, as shown in fig. 7, a logo advertisement screen is often installed on buildings 300 and roads in or near an airport, and if the LED display screen 100 of this embodiment is adopted, light pollution can be reduced within several kilometers of the airport, visual field interference of pilots can be eliminated, safe landing of an airplane can be guaranteed more, and the logo advertisement near the airport should be popularized.
To sum up, LED display screen 100 in the middle of the embodiment is through extending the eaves 12 on face guard 10 to the effect that is in the light that utilizes the eaves 12 makes light jet out along the specified direction, and then can reach the effect of the downward light-emitting of slope, reduces LED light pollution, because the adoption improves the design to face guard 10 and reaches the effect that reduces light pollution, avoids the slope installation of LED lamp pearl 40, guarantees the yield of lamp pearl installation, and then guarantees the production efficiency of LED display screen.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The mask is characterized in that at least one lamp hole is formed in the mask, an eaves extends out of the position of the side wall of the outer hole opening of each lamp hole in the first direction, and at least part of the projection of the eaves on the mask falls into the corresponding lamp hole, so that light emitted from the lamp holes is emitted towards the first direction after being shielded by the eaves.
2. The mask according to claim 1, wherein the mask extends outward from a side wall portion at the outer opening edge of the lamp hole, and the visor extends from the end of the side wall portion in the first direction.
3. The mask according to claim 2, wherein the side wall portion is disposed around the lamp hole, and an opening is provided at a side of the side wall portion facing the first direction.
4. A mask as claimed in claim 1, wherein the projection of the visor onto the mask does not cross the centre of the corresponding light aperture.
5. The mask according to claim 1, wherein the first direction is away from a top end of the mask and is disposed at an angle to the mask.
6. A mask as claimed in claim 5, wherein the mask has a plurality of said light holes arranged in an array along its length and height.
7. The mask according to claim 6, wherein an included angle between surfaces of two adjacent upper and lower mask eaves tangent to the light is a light-emitting visual angle of the light hole within the included angle.
8. A mask according to claim 5, wherein a light blocking portion extends from a position between the outer openings of two adjacent lamp holes, and the outer side surface of the light blocking portion is coplanar with the surface of the visor below the light blocking portion, which is tangent to the light.
9. A mask as claimed in claim 8, wherein the outer side of the light blocking portion is provided with a plurality of depressions.
10. An LED display screen, comprising a bottom shell, a PCB board arranged in the bottom shell, at least one LED lamp bead arranged on the front surface of the PCB board, and a face cover covering the front surface of the bottom shell, wherein the face cover is the face cover of any one of claims 1 to 9, and the LED lamp bead and the lamp hole on the face cover are arranged in a one-to-one manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021980064.XU CN212966898U (en) | 2020-09-11 | 2020-09-11 | Face guard and LED display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021980064.XU CN212966898U (en) | 2020-09-11 | 2020-09-11 | Face guard and LED display screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212966898U true CN212966898U (en) | 2021-04-13 |
Family
ID=75368594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021980064.XU Expired - Fee Related CN212966898U (en) | 2020-09-11 | 2020-09-11 | Face guard and LED display screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212966898U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114144825A (en) * | 2021-09-10 | 2022-03-04 | 深圳市雷迪奥视觉技术有限公司 | Face guard and display screen |
-
2020
- 2020-09-11 CN CN202021980064.XU patent/CN212966898U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114144825A (en) * | 2021-09-10 | 2022-03-04 | 深圳市雷迪奥视觉技术有限公司 | Face guard and display screen |
| WO2023035237A1 (en) * | 2021-09-10 | 2023-03-16 | 深圳市雷迪奥视觉技术有限公司 | Mask and display screen |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210413 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |