CN219872027U - Blue light prevention backlight display module - Google Patents
Blue light prevention backlight display module Download PDFInfo
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- CN219872027U CN219872027U CN202320463581.7U CN202320463581U CN219872027U CN 219872027 U CN219872027 U CN 219872027U CN 202320463581 U CN202320463581 U CN 202320463581U CN 219872027 U CN219872027 U CN 219872027U
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Abstract
The utility model provides a blue light prevention backlight display module, which comprises a backlight module, wherein the backlight module comprises a backlight iron frame, a backlight LED is arranged in the backlight iron frame, and a blue light prevention part is arranged on the backlight LED and is used for realizing blue light prevention of the backlight LED. According to the utility model, through the blue light prevention part, harmful blue light can be filtered from the light-emitting source of the display module, and visible light can be transmitted without influencing perspective and lighting effects, so that eyes are protected, harm to harmful blue light eyes is reduced, comfort level of a user when the user uses the product is improved, and user experience is improved.
Description
Technical Field
The utility model relates to the technical field of display modules, in particular to a blue light prevention backlight display module.
Background
Along with the progress of technology, more and more electronic products are provided with liquid crystal display screens, such as mobile phones, tablet computers, televisions, household appliances, instruments and the like, and the light sources of the products are backlight sources;
when the electronic product with the display screen is used for a long time, the blue light emitted by the display screen can damage eye retina cells, visual fatigue appears when the electronic product is light, sleep is influenced, eye diseases are caused when the electronic product is heavy, and particularly, the situation that mobile phones, computers and flat plates are commonly used at present is avoided, and the long-term use of the display screen endangers the health of people.
For example: chinese utility model patent: CN202123063283.9, "a liquid crystal display module and an electronic device" disclosed, its specification discloses: when the electronic product with the display screen is used for a long time, the blue light emitted by the display screen can damage retina cells of eyes, visual fatigue appears when the eyes are light, sleeping is influenced, and eye diseases are seriously caused. Especially in the current common use cases of mobile phones, computers and tablets, the long-term use of display screens endangers the health of people; the above patent can be used to demonstrate the drawbacks of the prior art.
Therefore, we propose an improvement of this, a blue light preventing backlight display module.
Disclosure of Invention
The utility model aims at: aiming at the problems that blue light emitted by the existing display screen damages eye retina cells, visual fatigue appears when the eye is light, sleep is influenced and eye diseases are caused when the eye is heavy.
In order to achieve the above object, the present utility model provides the following technical solutions:
the blue light preventing backlight display module is used for improving the problems.
The utility model is specifically as follows:
the backlight module comprises a backlight module body, wherein the backlight module body comprises a backlight iron frame, a backlight LED is arranged in the backlight iron frame, a blue light prevention part is arranged on the backlight LED, and the blue light prevention part is used for realizing blue light prevention of the backlight LED.
As a preferred implementation mode of the blue light prevention backlight display module provided by the utility model, the blue light prevention backlight display module further comprises a liquid crystal display module, wherein the liquid crystal display module is arranged on the backlight module, and one surface of the liquid crystal display module, which is far away from the cover plate structure, is provided with the liquid crystal display module.
As a preferred implementation mode of the blue light prevention backlight display module provided by the utility model, the blue light prevention part is a blue light prevention factor, and the blue light prevention factor is arranged in fluorescent powder of a backlight LED.
As a preferred embodiment of the blue light preventing backlight display module provided by the utility model, the blue light preventing part is a blue light preventing film, and the blue light preventing film is coated on the outer surface of the backlight LED.
As a preferred implementation mode of the blue light prevention backlight display module provided by the utility model, the backlight module further comprises a reflecting film, and the reflecting film is arranged at the bottom of the inner cavity of the backlight iron frame.
As a preferred implementation mode of the blue light prevention backlight display module provided by the utility model, the reflecting film is provided with a light guide plate, and the light guide plate is provided with a diffusion film.
As a preferred implementation mode of the blue light prevention backlight display module provided by the utility model, the diffusion film is provided with a lower brightness enhancement film, the lower brightness enhancement film is provided with an upper brightness enhancement film, and the top of the upper brightness enhancement film is provided with shading glue.
As a preferred implementation mode of the blue light prevention backlight display module provided by the utility model, the backlight LEDs are connected with a backlight FPC, and the backlight LEDs and the backlight FPC are positioned on one side of the light guide plate.
As a preferred implementation mode of the blue light prevention backlight display module provided by the utility model, the liquid crystal display module comprises a lower polaroid connected to the top of the shading glue, a liquid crystal display is connected to the top of the lower polaroid, and an upper polaroid is connected to the top of the liquid crystal display.
As a preferred implementation mode of the blue light prevention backlight display module provided by the utility model, the top of the upper polarizer is connected with an OCA adhesive layer, and the OCA adhesive layer is connected with the bottom of the cover plate structure.
Compared with the prior art, the utility model has the beneficial effects that:
in the scheme of the utility model:
1. through the blue light prevention part, harmful blue light can be filtered from the light-emitting source of the display module, and visible light can be transmitted without influencing perspective and lighting effects, so that eyes are protected, harm to harmful blue light eyes is reduced, comfort level of a user when the user uses a product is improved, and user experience is improved;
2. compared with the prior art that the blue light prevention part is arranged on the cover plate or the liquid crystal panel, the area of the backlight LED is far smaller than that of the cover plate and the liquid crystal panel, so that the required blue light prevention material amount is less, the production cost can be greatly saved, and other film layers are not influenced on the cover plate or the liquid crystal panel.
Drawings
Fig. 1 is a schematic structural diagram of a blue light preventing backlight display module provided by the present utility model;
fig. 2 is a schematic structural diagram of a backlight module of the blue light preventing backlight display module according to the present utility model;
fig. 3 is a schematic structural diagram of a backlight LED of the blue light preventing backlight display module provided by the present utility model.
The figures indicate:
1. a cover plate structure;
2. a liquid crystal display module; 201. an OCA glue layer; 202. a polaroid is arranged on the upper surface of the substrate; 203. a liquid crystal display; 204. a lower polarizer;
3. a backlight module; 301. a backlight iron frame; 302. a backlight LED; 303. a reflective film; 304. a light guide plate; 305. a diffusion film; 306. a lower brightness enhancement film; 307. a polishing film is arranged on the upper surface of the substrate; 308. shading adhesive; 309. and a backlight FPC.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model.
Thus, the following detailed description of the embodiments of the utility model is not intended to limit the scope of the utility model, as claimed, but is merely representative of some embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that, under the condition of no conflict, the embodiments of the present utility model and the features and technical solutions in the embodiments may be combined with each other.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present utility model, it should be noted that, the terms "upper", "lower", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or an azimuth or a positional relationship conventionally put in use of the inventive product, or an azimuth or a positional relationship conventionally understood by those skilled in the art, such terms are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be referred must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
As described in the background art, when an electronic product with a display screen is used for a long time, blue light emitted by the display screen damages eye retina cells, visual fatigue appears when the eye retina cells are light, sleep is influenced, eye diseases are caused when the eye retina cells are heavy, and especially when a mobile phone, a computer and a tablet are commonly used at present, the long-term use of the display screen endangers the health of people.
In order to solve the technical problem, the utility model provides a blue light prevention backlight display module which is applied to the blue light prevention of the backlight display module.
Specifically, referring to fig. 1 to 3, the blue light preventing backlight display module specifically includes: backlight module 3, backlight module 3 includes backlight iron frame 301, is provided with backlight LED302 in the backlight iron frame 301, is provided with on the backlight LED302 and prevents blue light portion, prevents blue light portion and is used for realizing the blue light prevention of backlight LED302
According to the blue light prevention backlight display module, through the blue light prevention part, harmful blue light can be filtered from the light-emitting source of the display module, and visible light can be transmitted, and perspective and lighting effects are not affected, so that eyes are protected, harm to harmful blue light eyes is reduced, comfort level of a user when the user uses a product is improved, and user experience is improved;
the blue light preventing part is directly arranged on the backlight LED302, compared with the prior art that the blue light preventing part is arranged on the cover plate or the liquid crystal panel, the area of the backlight LED302 is far smaller than that of the cover plate and the liquid crystal panel, so that the required blue light preventing material quantity is less, the production cost can be greatly saved, and other film layers are not influenced on the cover plate or the liquid crystal panel.
In order to make the person skilled in the art better understand the solution of the present utility model, the technical solution of the embodiment of the present utility model will be clearly and completely described below with reference to the accompanying drawings.
It should be noted that, under the condition of no conflict, the embodiments of the present utility model and the features and technical solutions in the embodiments may be combined with each other.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
Example 1
Referring to fig. 1-3, a blue light preventing backlight display module includes a backlight module 3, the backlight module 3 includes a backlight iron frame 301, a backlight LED302 is disposed in the backlight iron frame 301, and a blue light preventing portion is disposed on the backlight LED302 and is used for realizing blue light preventing of the backlight LED 302.
The blue light prevention backlight display module is characterized in that the blue light prevention part is arranged, harmful blue light can be filtered from a light-emitting source of the display module by the blue light prevention part, and visible light can be transmitted without influencing perspective and lighting effects, so that eyes are protected, harm to harmful blue light eyes is reduced, comfort level of a user when the user uses a product is improved, and user experience is improved;
the blue light preventing part is directly arranged on the backlight LED302, compared with the prior art that the blue light preventing part is arranged on the cover plate or the liquid crystal panel, the area of the backlight LED302 is far smaller than that of the cover plate and the liquid crystal panel, so that the required blue light preventing material quantity is less, the production cost can be greatly saved, and other film layers are not influenced on the cover plate or the liquid crystal panel.
Blue light exists in a large amount in light rays such as computer displays, fluorescent lamps, mobile phones, digital products, display screens and LEDs, toxin in a macula area in eyes is increased by the blue light in the wavelength, the eyes are seriously threatened, blue light in daily life is visible everywhere, but the main source of the contacted harmful blue light is an LED liquid crystal screen, the LED liquid crystal display screen adopts LED backlight nowadays, the effect of white light is required by the backlight, the industry uses blue LEDs to mix yellow fluorescent powder to form white light, and blue light spectrum in the white light has a peak because the blue LEDs are main hardware, so that the problem that eyes are injured by the harmful blue light is formed, and the damage to eyes by the harmful blue light is daily accumulated, so that the damage to the eyes by the television blue light is important enough, especially for teenagers and children.
The damage of blue light to human eyes is mainly represented by eye pathological damage and human body rhythm damage which lead to myopia, cataract and maculopathy:
1. blue light damages one, and the structure is damaged: harmful blue light has extremely high energy, can penetrate through the lens to reach the retina, and causes atrophy and even death of retinal pigment epithelial cells, the death of photosensitive cells can lead to vision reduction and even complete loss, the damage is irreversible, the blue light can also lead to maculopathy, the lens in human eyes can absorb part of the blue light to gradually become turbid to form cataract, most of the blue light can penetrate through the lens, especially the lens of children is clear, and the blue light cannot be effectively resisted, so that maculopathy and cataract are more easily caused;
2. blue light hazard II, asthenopia: because of the short wavelength of blue light, the focal point does not fall at the center of the retina, but rather is located a little further forward from the retina. To see clearly, eyeballs are in tension for a long time, so that asthenopia and long-time asthenopia can be caused, and symptoms such as myopia deepening, double vision, easy serial reading, incapacity of concentrating attention and the like of people can be caused, so that the learning and working efficiency of people are influenced;
3. blue light hazard three, bad sleep: blue light can inhibit the secretion of melanin-removing, and the melanin-removing is an important hormone affecting sleeping, and the known effect is to promote sleeping and regulate time difference, which can explain why a mobile phone or a tablet computer is played before sleeping, and causes that the sleeping quality is low and even the sleeping is difficult to fall.
Example 2
The blue light preventing backlight display module provided in embodiment 1 is further optimized, specifically, as shown in fig. 1, the blue light preventing backlight display module further includes a liquid crystal display module 2, the liquid crystal display module 2 is disposed on the backlight module 3, and the liquid crystal display module 2 is disposed on a side far away from the cover plate structure 1.
The blue light prevention part is a blue light prevention factor which is arranged in the fluorescent powder of the backlight LED302 and can transmit visible light in the wave band of 440nm-780nm, so that the perspective and lighting effect are not affected;
the blue light prevention factors comprise LGXSJ-430, the content of the blue light prevention factors in the backlight LED302 is 90% -95%, the blue light prevention factors are used for absorbing ultraviolet rays and blue light of 320-440 nm wave bands emitted by the LED, and the blocking rate is 92% -95%.
Example 3
Further optimizing the blue light prevention backlight display module provided in embodiment 1, wherein the blue light prevention part is a blue light prevention film, the blue light prevention film is coated on the outer surface of the backlight LED302, and the blue light prevention film can transmit visible light in 440nm-780nm wave bands without influencing perspective and lighting effect;
the thickness of the blue light prevention film is 25-35 um, the blue light prevention film comprises blue light resin paint, the diameter of the blue light resin paint particles comprises 1-5 um, harmful blue light can be reflected, and the blocking rate of the harmful blue light can be 92-95% and can be used for blocking ultraviolet rays and blue light of 320-440 nm wave bands emitted by an LED.
Example 4
The blue light preventing backlight display module provided in the above embodiments is further optimized, as shown in fig. 1, the backlight module 3 further includes a reflective film 303, and the reflective film 303 is disposed at the bottom of the inner cavity of the backlight frame 301.
The reflection film 303 is provided with a light guide plate 304, and the light guide plate 304 is provided with a diffusion film 305.
The diffusion film 305 is provided with a lower intensifying film 306, the lower intensifying film 306 is provided with an upper intensifying film 307, and the top of the upper intensifying film 307 is provided with a shading adhesive 308.
The backlight LED302 is connected to a backlight FPC309, and the backlight LED302 and the backlight FPC309 are located on one side of the light guide plate 304.
Example 5
As shown in fig. 1, the liquid crystal display module 2 includes a lower polarizer 204 connected to the top of a light shielding glue 308, a liquid crystal display 203 is connected to the top of the lower polarizer 204, and an upper polarizer 202 is connected to the top of the liquid crystal display 203.
The top of going up polaroid 202 is connected with OCA glue film 201, and OCA glue film 201 is connected with the bottom of apron structure 1, and apron structure 1 can protect liquid crystal display module 2 to reduce liquid crystal display module 2 by the condition of scraping the flower.
OCA is a special adhesive for cementing transparent optical elements, and has the characteristics of no color, transparency, light transmittance of more than 95%, good cementing strength, capability of being cured at room temperature or medium temperature, small curing shrinkage and the like.
The liquid crystal display 203, namely a TFT display screen, is a main stream display device on various notebook computers and desktops, and each liquid crystal pixel point on the display screen is driven by a thin film transistor integrated behind the pixel point, so that the TFT display screen is also an active matrix liquid crystal display device, and has the advantages of high responsiveness, high brightness, high contrast ratio and the like;
the polaroid is called a polaroid, the imaging of the display is required to depend on polarized light, and all liquid crystals are provided with a front polaroid and a rear polaroid which are tightly attached to liquid crystal glass to form a liquid crystal sheet with the total thickness of about 1 mm;
the polarizer is called because the normal display facing the eye is frosted to dissipate the surface reflection and scatter the light to increase the viewing angle of the display, any scattering causing loss of light for the projector.
Specifically, this prevent blue light backlight unit adds the blue light factor of preventing in backlight LED 302's phosphor powder to/or cover at backlight LED302 periphery and prevent blue light membrane, can filter harmful blue light from display module assembly's luminous source, and can make the visible light see-through, do not influence perspective and daylighting effect, thereby protect eyes, reduce the injury to harmful blue light people's eyes, comfort level when promoting the user and using the product, improvement user experience is felt.
The above embodiments are only for illustrating the present utility model and not for limiting the technical solutions described in the present utility model, and although the present utility model has been described in detail in the present specification with reference to the above embodiments, the present utility model is not limited to the above specific embodiments, and thus any modifications or equivalent substitutions are made to the present utility model; all technical solutions and modifications thereof that do not depart from the spirit and scope of the utility model are intended to be included in the scope of the appended claims.
Claims (10)
1. The utility model provides a prevent blue light backlight unit, includes backlight unit (3), its characterized in that, backlight unit (3) include backlight chase (301), be provided with backlight LED (302) in backlight chase (301), be provided with on backlight LED (302) and prevent blue light portion, prevent blue light portion and be used for realizing backlight LED (302) prevent blue light.
2. The blue light prevention backlight display module according to claim 1, further comprising a liquid crystal display module (2), wherein the liquid crystal display module (2) is arranged on the backlight module (3), and the liquid crystal display module (2) is far away from one surface of the cover plate structure (1).
3. The blue light preventing backlight display module according to claim 2, wherein the blue light preventing portion is a blue light preventing factor, and the blue light preventing factor is disposed in a phosphor of the backlight LED (302).
4. The blue light preventing backlight display module according to claim 2, wherein the blue light preventing portion is a blue light preventing film, and the blue light preventing film is coated on an outer surface of the backlight LED (302).
5. The blue light preventing backlight display module according to claim 4, wherein the backlight module (3) further comprises a reflective film (303), and the reflective film (303) is disposed at the bottom of the inner cavity of the backlight frame (301).
6. The blue light preventing backlight display module according to claim 5, wherein the reflective film (303) is provided with a light guide plate (304), and the light guide plate (304) is provided with a diffusion film (305).
7. The blue light preventing backlight display module according to claim 6, wherein a lower brightness enhancement film (306) is disposed on the diffusion film (305), an upper brightness enhancement film (307) is disposed on the lower brightness enhancement film (306), and a shading adhesive (308) is disposed on top of the upper brightness enhancement film (307).
8. The blue light preventing backlight display module according to claim 7, wherein the backlight LED (302) is connected with a backlight FPC (309), and the backlight LED (302) and the backlight FPC (309) are both located at one side of the light guide plate (304).
9. The blue light preventing backlight display module according to claim 8, wherein the liquid crystal display module (2) comprises a lower polarizer (204) connected to the top of the shading glue (308), the top of the lower polarizer (204) is connected with a liquid crystal display (203), and the top of the liquid crystal display (203) is connected with an upper polarizer (202).
10. The blue light preventing backlight display module according to claim 9, wherein the top of the upper polarizer (202) is connected with an OCA glue layer (201), and the OCA glue layer (201) is connected with the bottom of the cover plate structure (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202320463581.7U CN219872027U (en) | 2023-03-10 | 2023-03-10 | Blue light prevention backlight display module |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202320463581.7U CN219872027U (en) | 2023-03-10 | 2023-03-10 | Blue light prevention backlight display module |
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| CN219872027U true CN219872027U (en) | 2023-10-20 |
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| CN202320463581.7U Active CN219872027U (en) | 2023-03-10 | 2023-03-10 | Blue light prevention backlight display module |
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