CN218896436U - LED display screen and display device - Google Patents
LED display screen and display device Download PDFInfo
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- CN218896436U CN218896436U CN202222692524.4U CN202222692524U CN218896436U CN 218896436 U CN218896436 U CN 218896436U CN 202222692524 U CN202222692524 U CN 202222692524U CN 218896436 U CN218896436 U CN 218896436U
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Abstract
The utility model belongs to the technical field of display, and particularly relates to an LED display screen and a display device. Wherein, display device includes the LED display screen, and the LED display screen includes box, a plurality of LED display module, transparent cover plate and increases the black layer, and display module installs in the box and splices the display surface that forms the display screen, and transparent cover plate locates the display surface and covers the display surface, and the black layer is located between transparent cover plate and the display surface and covers the display surface, and the black layer is the translucent layer of black and the reflective capability that reflects light is less than the reflective capability of display surface. Therefore, by arranging the blackening layer, the black plane layer with lower reflection degree is covered on the display surface, so that the black screen brightness of the display screen can be reduced, and the contrast ratio of the display screen is improved; and when the display screen is dark, the black-adding layer with black vision is the apparent color, and the consistency of the black color of the black-adding layer can be improved by setting the consistency of the black color of the black-adding layer, so that the contrast ratio of the whole screen is uniformly improved.
Description
Technical Field
The utility model belongs to the technical field of display, and particularly relates to an LED display screen and a display device.
Background
In recent years, with the rapid development of LED display technology, a sub-millimeter light emitting diode (Mini Light Emitting Diode, mini-LED) manufactured by combining a semiconductor micro-nano manufacturing technology with an LED technology is beginning to be applied to the LED display technology, and compared with the current mainstream OLED and LCD display technologies, the application of the Mini-LED enables the display performance of the LED display screen to have a greatly improved space.
However, the display performance of an LED display screen is not only related to the performance of the LED chip, but is also closely related to the contrast of the display screen. Generally, the larger the contrast ratio is, the clearer and more striking the image is, the more vivid and gorgeous the color is, and the better the display effect is; the smaller the contrast ratio is, the gray of the whole picture can be increased, and the display effect is affected. At present, contrast is mainly improved by improving white screen brightness of an LED display screen in the industry, however, energy consumption is increased due to brightness increase, and on one hand, power consumption for the display screen is increased; on the other hand, too high brightness of the screen can also cause too high temperature rise of the LED display screen, so that the screen is overheated, and the service life of the display screen is adversely affected.
Disclosure of Invention
The embodiment of the utility model aims to provide an LED display screen and a display device, which are used for solving the technical problem that the contrast of the LED display screen in the related art cannot be further and effectively improved.
The technical scheme adopted by the utility model is as follows: provided is an LED display screen, including:
a case;
the LED display modules are arranged on one side of the box body, and the display surfaces of the LED display modules are spliced to form the display surface of the LED display screen;
the transparent cover plate is arranged on one side of the display surface, which is away from the box body, and covers the display surface;
the blackening layer is arranged between the transparent cover plate and the display surface, the blackening layer covers the display surface, the blackening layer is a black semitransparent layer, and the light reflecting capacity of the blackening layer is lower than that of the display surface.
In some embodiments, the darkening layer is a black translucent film layer that is adhered to the display surface and/or adhered to the transparent cover plate.
In some embodiments, the black translucent film layer is a laminate of any one or more of a polyethylene terephthalate film, a polypropylene film, a polyvinyl chloride film, a super-resolution polyester film, a thermoplastic polyurethane elastomer rubber film, and a polarizer film.
In some embodiments, the darkening layer is a black translucent coating, and the darkening layer is applied to the transparent cover plate.
In some embodiments, the black translucent coating is a laminate of one or more of an epoxy coating, a silicone coating, an acrylate coating, or a polyurethane coating.
In some embodiments, the darkening layer has a transmittance of 15% to 80%.
In some embodiments, the transparent cover plate includes a flat plate portion facing the display surface, the flat plate portion being of uniform thickness and having smooth and flat inside and outside surfaces.
In some embodiments, the thickness of the darkening layer is greater than 3 μm and less than the thickness of the flat plate portion.
In some embodiments, the transparent cover plate further comprises a side plate part arranged at the periphery of the flat plate part, the transparent cover plate is covered on one side of the display surface, which is away from the box body, and the side plate part covers the side part of the LED display module.
The one or more technical schemes in the LED display screen provided by the utility model have at least one of the following technical effects: according to the LED display screen, the transparent cover plate is arranged, the blackening layer is arranged between the transparent cover plate and the display surface and covers the display surface, and the blackening layer is a black semitransparent layer, so that the arrangement of the blackening layer is equivalent to that of covering a black plane layer with lower reflection degree on the display surface, the black screen brightness of the LED display screen can be reduced, the contrast ratio of the display screen can be effectively improved, and the display performance of the display screen is improved; and when the LED display screen of the application is in a dark screen state, the visual black-adding layer is the apparent color seen through the transparent cover plate, and the consistency of the color of the black-adding layer can be improved by setting the consistency of the color of the black-adding layer, so that the difference of the ink colors of the display surfaces caused by the chromatic aberration of a plurality of LED display modules is improved, and the contrast of the whole screen is uniformly improved. In addition, set up transparent apron again outside the blackening layer, transparent apron covers the blackening layer, avoids dust, piece etc. to adhere to on the blackening layer, influences the blackening effect on blackening layer.
The utility model adopts another technical scheme that: a display device is provided, which comprises the LED display screen.
According to the display device provided by the utility model, by using the LED display screen, the contrast of the screen is increased, the screen display effect is better, the visual effect is better, the brightness of the screen is not required to be increased excessively, the heating of the screen is reduced, the service life is effectively prolonged, and the user experience is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an LED display screen according to an embodiment of the present utility model;
FIG. 2 is a side view of the LED display screen shown in FIG. 1;
fig. 3 is a schematic structural diagram of an LED display screen according to another embodiment of the present utility model.
Wherein, each reference sign in the figure:
10. a case;
20. an LED display module;
30. a transparent cover plate; 31. a flat plate portion; 32. a side plate portion;
40. and (5) blackening the layer.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the present utility model is further described in detail below with reference to fig. 1 to 3 and the embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It is to be understood that the terms "length," "width," "upper," "lower," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship based on that shown in the drawings, merely to facilitate describing the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.
Furthermore, in the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Reference in the specification to "one embodiment," "some embodiments," or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the utility model. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," and the like in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments" unless expressly specified otherwise. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
In the related art, the display performance of the LED display screen is closely related to the contrast of the display screen, in general, the larger the contrast is, the clearer and more striking the image is, the more vivid and gorgeous the color is, and the better the display effect is, whereas the smaller the contrast is, the lower the picture and the image definition is, and the worse the display effect is. In addition, because the LED display screen is formed by a plurality of LED display modules in a spliced manner, the display surfaces of the plurality of LED display modules form the display surface of the LED display screen, and in the actual production process, due to the fact that the display surfaces of the display modules spliced with each other have coloring differences, the display surfaces formed by the plurality of display modules after being spliced can have inconsistent ink colors, and the display effect of the display screen can be affected.
Based on this, this application provides an LED display screen, and this LED display screen has higher contrast, and the ink uniformity is better, and the display effect of display screen is better, and the image quality is better, and this LED display screen can be high-density LED display screen, for example uses Mini-LED chip's display screen etc. and it also can be other kind of LED display screen.
The following describes the LED display screen of the present application in detail with reference to the drawings and specific embodiments.
As shown in fig. 1 and 2, an embodiment of the present utility model provides an LED display screen, which includes a case 10 and a plurality of LED display modules 20, wherein the plurality of LED display modules 20 are mounted on one side of the case 10, and the plurality of LED display modules 20 are spliced with each other, so that display surfaces of the LED display modules 20 are spliced to form a display surface of the LED display screen of the embodiment.
In addition, the LED display screen of the present embodiment further includes a transparent cover plate 30 and a blackening layer 40, where the transparent cover plate 30 is disposed on a side of the display surface facing away from the case 10, and the transparent cover plate 30 covers the display surface; the blackening layer 40 is arranged between the transparent cover plate 30 and the display surface, the blackening layer 40 covers the display surface, the blackening layer 40 is a black semitransparent layer, the light reflecting capacity of the blackening layer 40 is lower than that of the display surface, namely, under the same illumination condition, the blackening layer 40 is darker than the display surface visually, and the blackening layer 40 is a semitransparent layer, so that light rays emitted from the display surface can be ensured to normally penetrate.
According to the LED display screen provided by the embodiment of the utility model, the transparent cover plate 30 is arranged, the blackening layer 40 is arranged between the transparent cover plate 30 and the display surface, the blackening layer 40 covers the display surface, and as the blackening layer 40 is a black semitransparent layer, the arrangement of the blackening layer 40 is equivalent to covering a black plane layer with lower reflection degree on the display surface, so that the black screen brightness of the LED display screen can be reduced, the contrast ratio of the display screen can be effectively improved, and the display performance of the display screen is improved; and, when the LED display screen of this application is in dark screen state, the apparent color that black layer 40 just sees for permeating transparent apron 30 in the vision, set up that black layer 40 colour is unanimous just can improve the ink uniformity of this application LED display screen to improve the ink difference of display surface because of there is the colour difference a plurality of LED display modules 20, thereby evenly improve the contrast of whole screen. In addition, a transparent cover plate 30 is further disposed outside the blackening layer 40, and the transparent cover plate 30 covers the blackening layer 40, so that dust, scraps and the like are prevented from adhering to the blackening layer 40, and the blackening effect of the blackening layer 40 is prevented from being affected.
In some embodiments, the transmittance of the blackening layer 40 is 15% -80%, so as to ensure that the light emitted from the display surface can normally pass through, and ensure the normal display function of the LED display screen of this embodiment, where the transmittance of the blackening layer 40 refers to the transmittance of the blackening layer 40 to the light emitted from the display surface.
In a specific embodiment, the transmittance of the blackening layer 40 may be 15%, 20%, 25%, 30%, 35%, 40%, 50%, 60%, 70% or 80%, etc., and the specific transmittance may be selected according to different display effects, which is not limited herein.
In other embodiments, as shown in fig. 1 and 2, the transparent cover 30 includes a flat plate portion 31 facing the display surface, where the flat plate portion 31 has a uniform thickness and has a smooth and flat inner side surface and an outer side surface, and the inner side surface of the flat plate portion 31 is the surface of the flat plate portion 31 facing the display surface, and the outer side surface of the flat plate portion 31 is the surface of the flat plate portion 31 facing away from the display surface.
In this way, the flat plate portion 31 with a smooth and flat surface is disposed on the display surface, on one hand, the blackening layer 40 is disposed between the flat plate portion 31 and the display surface, and the transparent flat plate portion 31 can shield the blackening layer 40, so as to avoid dust, debris and the like from affecting the blackening effect of the blackening layer 40; on the other hand, when the flat plate portion 31 has smooth and flat inner side surfaces and outer side surfaces, and the LED display modules 20 are spliced, the flat plate portion 31 can be firstly placed on the flat mounting surface, and then the LED display modules 20 are spliced with the inner side surfaces of the flat plate portion 31 as a reference, so that the display surfaces of the display modules are kept attached to the inner side surfaces of the flat plate portion 31, and the setting heights of the LED display modules 20 can be kept as uniform as possible, thereby reducing the problem of inconsistent heights of the LED display modules 20 caused by splicing operation errors, enabling the display surfaces to be smoother, and improving the problem of uneven sizes of splicing seams among the LED display modules 20.
In a specific embodiment, as shown in fig. 2, the thickness D1 of the blackening layer 40 is set to be greater than 3 μm, so that the blackening layer 40 is ensured to have a certain thickness, and the screen brightness of the LED display screen in the dark screen state of the embodiment can be effectively reduced, thereby effectively improving the contrast ratio. On the other hand, the thickness D1 of the blackening layer 40 is smaller than the thickness D2 of the flat plate portion 31, and the whole is more beautiful.
In a specific embodiment, the transparent cover plate 30 is a transparent glass cover plate, such as an organic glass plate or an inorganic glass plate.
In some embodiments, as shown in fig. 1 and 2, the darkening layer 40 is a black translucent film layer, and the darkening layer 40 may be adhesively bonded to the display surface and/or to the transparent cover plate 30 during manufacture. Specifically, the blackening layer 40 may be adhered to a side of the display surface facing away from the case 10, the blackening layer 40 covers the display surface, or the blackening layer 40 may be adhered to a side of the transparent cover plate 30 facing the display surface, or one side of the blackening layer 40 may be adhered to the display surface, and the other side is adhered to the transparent cover plate 30. For example, bonding or the like may be performed using transparent glue.
In a specific embodiment, the black translucent film layer may be any one of a polyethylene terephthalate (Polyethylene terephthalate, PET) film, a Polypropylene (PP) film, a polyvinyl chloride (Polyvinyl chloride, PVC) film, an ultra-refractive polyester film, i.e., an SRF film, a thermoplastic polyurethane elastomer rubber (Thermoplastic polyyrethane, TPU) film, and a polarizing plate film, or may be a laminate structure of the above films.
In other embodiments, the darkening layer 40 may also be a black translucent coating, with the darkening layer 40 applied to the side of the transparent cover plate 30 facing the display surface. For example, the blackening layer 40 may be sprayed on the transparent cover plate 30 by spraying, or may be deposited on the transparent cover plate 30 by chemical vapor deposition technology or physical vapor deposition technology.
In a specific embodiment, the black semitransparent coating layer may be one of an epoxy coating layer, a silicone coating layer, an acrylate coating layer or a polyurethane coating layer, or may be a laminated structure of the above-mentioned multiple coating layers.
In other embodiments, as shown in fig. 3, the transparent cover plate 30 may further include a side plate portion 32, where the side plate portion 32 is disposed at a periphery of the flat plate portion 31, specifically, the side plate portion 32 is substantially perpendicular to the flat plate portion 31, the transparent cover plate 30 is entirely in a cover shape, the transparent cover plate 30 is covered on a side of the display surface facing away from the case 10, and the side plate portion 32 covers a side portion of the LED display module 20. Like this, curb plate portion 32 can protect the side of LED display module assembly 20 to reduce the risk that LED display module assembly 20 is damaged because of the side is bumped or knocked with by the foreign object, further improve the safety in utilization of the LED display screen of this embodiment.
In a specific embodiment, the transparent cover plate 30 may be adhered to the display surface, for example, by transparent glue, or the transparent cover plate 30 may be adhered to the side of the LED display module 20 by the side plate 32. In other cases, when the extension length of the side plate portion 32 in the thickness direction of the LED display module 20 exceeds the thickness of the LED display module 20, the transparent cover plate 30 may be attached to the case 10 through the side plate portion 32, such as adhesion.
In the embodiment, the transparent cover plate 30 is an integral piece, the side plate 32 is integrally formed on the flat plate 31, and the forming process is simple and is convenient for batch production.
The following is a simple description of the production process of the LED display screen according to the present application, in combination with a specific embodiment:
first, the case 10, the plurality of LED display modules 20, and the transparent cover plate 30 are provided, where the transparent cover plate 30 is adapted to a display surface formed by splicing the plurality of display modules, for example, the transparent cover plate 30 may be a transparent acrylic glass plate or a tempered glass plate capable of covering the display surface.
Then, the transparent cover plate 30 is placed on the flat mounting surface, the inner side surface of the transparent cover plate 30 opposite to the display surface faces away from the mounting surface, and then the inner side surface of the transparent cover plate 30 is taken as a reference surface to splice the plurality of LED display modules 20, and each LED display module 20 is positioned and mounted on the box body 10. The assembly of the case 10 and the LED module is separated from the transparent cover plate 30, and the blackening layer 40 is sputtered on the inner side surface of the transparent cover plate 30 by using a magnetron sputtering process, or the blackening layer 40 is sprayed by using an inkjet process, and the blackening layer 40 is applied on the inner side surface of the transparent cover plate 30, wherein the transmittance of the blackening layer 40 can be 15% to 80%.
Finally, the transparent cover plate 30 and the box body 10 are adhered and fixed by using transparent glue.
According to the LED display screen provided by the utility model, the transparent cover plate is arranged, and the blackening layer is arranged between the transparent cover plate and the display surface and covers the display surface, so that the black screen brightness of the display screen can be reduced, the contrast ratio of the display screen is improved, and the display performance of the display screen is improved; and set up and increase black layer colour uniformity just can improve the ink uniformity of this application LED display screen to improve the ink colour difference of display surface that leads to because of a plurality of LED display module assemblies exist the colour difference, evenly improve the contrast ratio of whole screen. In addition, set up transparent apron again outside the blackening layer, transparent apron covers the blackening layer, avoids dust, piece etc. to adhere to on the blackening layer, influences the blackening effect on blackening layer.
Another embodiment of the present utility model further provides a display device, including the LED display screen of each embodiment. The display device of the present embodiment includes, but is not limited to, devices with a display panel, such as televisions, computers, tablets, mobile phones, and the like.
The display device that this embodiment provided, it is through using foretell LED display screen, and the contrast of its screen increases, and screen display effect is better, and visual effect is better to, need not the bright screen luminance of too high increase screen, screen generates heat and reduces, life can effectively prolong, and user's use experience promotes.
In addition, the display device of this embodiment further has other beneficial effects of the LED display screen provided in the foregoing embodiments, and details thereof are not repeated here.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (10)
1. An LED display screen, comprising:
a case;
the LED display modules are arranged on one side of the box body, and display surfaces of the LED display modules are spliced to form the display surface of the LED display screen;
the transparent cover plate is arranged on one side, away from the box body, of the display surface and covers the display surface;
the blackening layer is arranged between the transparent cover plate and the display surface, the blackening layer covers the display surface, the blackening layer is a black semitransparent layer, and the light reflecting capacity of the blackening layer is lower than that of the display surface.
2. The LED display screen of claim 1, wherein the darkening layer is a black translucent film layer that is adhered to the display surface and/or to the transparent cover plate.
3. The LED display screen of claim 2, wherein the black translucent film layer is a laminated structure of any one or more of a polyethylene terephthalate film, a polypropylene film, a polyvinyl chloride film, a super-refractive polyester film, a thermoplastic polyurethane elastomer rubber film, and a polarizing plate film.
4. The LED display screen of claim 1, wherein the darkening layer is a black translucent coating, the darkening layer being applied to the transparent cover plate.
5. The LED display screen of claim 4, wherein the black translucent coating is a laminate of one or more of an epoxy coating, a silicone coating, an acrylate coating, or a polyurethane coating.
6. The LED display screen of any one of claims 1 to 5, wherein the transmission of the darkening layer is 15% to 80%.
7. The LED display screen of any one of claims 1-5, wherein the transparent cover plate comprises a flat plate portion facing the display surface, the flat plate portion having a uniform thickness and having smooth and flat inside and outside surfaces.
8. The LED display screen of claim 7, wherein the thickness of the darkening layer is greater than 3 μιη and less than the thickness of the flat panel portion.
9. The LED display screen of claim 7, wherein the transparent cover plate further comprises a side plate portion provided at the periphery of the flat plate portion, the transparent cover plate is covered on one side of the display surface facing away from the case, and the side plate portion covers the side portion of the LED display module.
10. A display device comprising the LED display screen of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222692524.4U CN218896436U (en) | 2022-10-12 | 2022-10-12 | LED display screen and display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222692524.4U CN218896436U (en) | 2022-10-12 | 2022-10-12 | LED display screen and display device |
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| Publication Number | Publication Date |
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| CN218896436U true CN218896436U (en) | 2023-04-21 |
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| CN202222692524.4U Active CN218896436U (en) | 2022-10-12 | 2022-10-12 | LED display screen and display device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116741062A (en) * | 2023-08-15 | 2023-09-12 | 长春希龙显示技术有限公司 | Packaging process method of LED display module and LED display module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116741062A (en) * | 2023-08-15 | 2023-09-12 | 长春希龙显示技术有限公司 | Packaging process method of LED display module and LED display module |
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