CN218299286U - Backlight module, display module and electronic equipment - Google Patents
Backlight module, display module and electronic equipment Download PDFInfo
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- CN218299286U CN218299286U CN202122404681.6U CN202122404681U CN218299286U CN 218299286 U CN218299286 U CN 218299286U CN 202122404681 U CN202122404681 U CN 202122404681U CN 218299286 U CN218299286 U CN 218299286U
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- guide plate
- light guide
- backlight module
- blue light
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Abstract
The utility model discloses a backlight module, a display module and an electronic device, wherein the backlight module comprises a reflector plate; a light guide plate at least partially covering the reflective sheet, the light guide plate including a blue light absorber; a diffusion sheet at least partially covering the light guide plate; the brightness enhancement film at least partially covers the diffusion sheet; and the light source is arranged on the side edge of the light guide plate. The utility model discloses blue light absorbent is advanced in the doping in the light guide plate, can absorb blue light and ultraviolet ray, and the seeing through of separation ultraviolet ray and blue light is and can see through the visible light, does not influence perspective and daylighting effect, and consequently when the light in the light source when the light guide plate, is absorbed in light guide plate transmission process, becomes the visible light of low blue light, passes through diffusion piece again, the piece jets out that adds lustre to, becomes soft light and gets into people's eye, protection eyes, reduces the damage to people's eye.
Description
Technical Field
The utility model relates to a display module assembly technical field especially relates to a backlight module, display module assembly and electronic equipment.
Background
With the rapid development of electronic display technology and touch technology, people are increasingly using electronic products widely, and all aspects of daily life are deeply penetrated by electronic touch display products no matter work, study, entertainment and the like. However, when the electronic product is used for a long time, the blue light radiated from the display can cause the increase of the toxin amount in the macular area in the eyes, damage retina cells and seriously threaten the eye health, and the harm is more serious for children and the old. Therefore, the method tries to filter the blue light emitted from the display, and the product with the blue light resistance is designed, so that the method has important significance and application value.
In view of this, it is urgently needed to improve the existing backlight module, so as to block ultraviolet light and blue light from transmitting through the backlight module.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a backlight module, display module assembly and electronic equipment for among the solution prior art, the blue light of radiation harms the healthy problem of eyes among the display module assembly.
In order to solve the above problem, the utility model adopts the following technical scheme:
a backlight module is provided, which comprises,
a reflective sheet;
a light guide plate at least partially covering the reflective sheet, the light guide plate including a blue light absorber;
a diffusion sheet at least partially covering the light guide plate;
the brightness enhancement film at least partially covers the diffusion film;
and the light source is arranged on the side edge of the light guide plate.
In the above aspect, the blue-light absorber includes LGXSJ-430.
In the scheme, the blue light absorbent is used for absorbing light with a wave band of 320 nm-460 nm.
In the above aspect, the light source includes an LED lamp.
In the above scheme, the periphery of the LED lamp is provided with a lamp cover.
In the scheme, the two brightness enhancement films are arranged, one surfaces of the two brightness enhancement films, which are far away from the diffusion film, are both in a sawtooth shape, and the sawtooth parts are mutually matched in an orthogonal mode.
In the above scheme, the blue light absorbent can transmit light in a wavelength band of 440nm to 780 nm.
In the above scheme, the protection plate is further included to cover the brightness enhancement film.
The utility model also provides a display module assembly, including any one of the above-mentioned scheme backlight unit.
The utility model also provides an electronic equipment, including any one of the above-mentioned scheme backlight unit, and/or the display module assembly in the above-mentioned scheme.
The utility model discloses a technical scheme can reach following beneficial effect:
blue light absorbent is advanced in the doping in the light guide plate, can absorb blue light and ultraviolet ray, and the seeing through of separation ultraviolet ray and blue light and can see through the visible light do not influence perspective and daylighting effect, consequently when the light in the light source through the light guide plate, is absorbed in light guide plate transmission process, becomes the visible light of low blue light, passes through diffusion piece, the brightness enhancement piece again and jets out, becomes soft light and gets into people's eye, protection eyes, reduces the damage to people's eye.
Drawings
In order to explain the technical solutions of the embodiments of the present invention more clearly, the drawings required for use in the description of the embodiments are described below simply to form a part of the present invention, and the exemplary embodiments and the explanation of the present invention explain the present invention without making undue restrictions to the present invention. In the drawings:
fig. 1 is a schematic view of an overall structure of a backlight module disclosed in embodiment 1 of the present invention.
The following reference numerals are included:
a reflector sheet-10; a light guide plate-20; a diffusion sheet-30; a brightness enhancement film-40; a light source-50; a lamp cover-51; and a protective plate 60.
Detailed Description
To make the purpose, technical solution and advantages of the present invention clearer, the following description will be given with reference to the embodiments of the present invention and the accompanying drawings, in which the technical solution of the present invention is clearly and completely described. It is to be understood that the disclosed embodiments are merely exemplary of the invention, and are not intended to limit the invention to the precise embodiments disclosed. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
Example 1
As shown in fig. 1, the present invention provides a backlight module, including,
a reflective sheet 10; a light guide plate 20 at least partially covering the reflective sheet 10, the light guide plate 20 including a blue light absorber; a diffusion sheet 30 at least partially covering the light guide plate 20; a brightness enhancement film 40 at least partially covering the diffusion film 30; and a light source 50 disposed at a side of the light guide plate 20.
The utility model discloses blue light absorbent is advanced in doping in light guide plate 20, blue light and ultraviolet ray can be absorbed, and the seeing through of separation ultraviolet ray and blue light is and can see through the visible light, does not influence perspective and daylighting effect, consequently when light in light source 50 is through light guide plate 20, is absorbed in light guide plate 20 transmission course, becomes the visible light of low blue light, passes through diffusion piece 30 again, adds lustre to piece 40 and jets out, becomes soft light and gets into people's eye, and protection eyes reduce the damage to people's eye.
Preferably, the blue light absorber of this embodiment comprises LGXSJ-430. The LGXSJ-430 absorption peak is in a range of 360-440nm, the peak value is 430nm, the blue light blocking rate is 92% -95%, the blocking rate is high, and the blue light absorbent absorbs ultraviolet rays and blue light with wave bands of 320 nm-460 nm and blocks the transmission of the ultraviolet rays and the blue light. Meanwhile, the film can transmit 440 nm-780 nm visible light without influencing the perspective and lighting effects. The LGXSJ-430 is in a powder shape, is suitable for being added into the light guide plate 20, and achieves the effect of blocking a blue light wave band aiming at a visible light part. Because the compatibility of the molecular structure to the organic solvent is good, the effect of blocking blue light can be achieved only by a small amount of blue light absorbent, and the dosage can be flexibly adjusted according to the product condition.
In the preferred embodiment, the blue light absorber is used for absorbing light in the wavelength range of 320nm to 460 nm. Can separate the blue light of each wave band and see through display module assembly, the separation is effectual.
Preferably, the light source 50 includes an LED lamp. The LED lamp is more energy-saving and environment-friendly, has small volume, is suitable for being used as a backlight source, has more colors of the light source 50, and can also be used as a color-changing backlight source. In this embodiment, the light sources 50 are strip-shaped, and at least one strip is fixedly disposed on the side of the light guide plate 20.
In the present embodiment, preferably, a lamp cover 51 is provided on the outer periphery of the LED lamp. The LED lamp can be protected.
The two brightness enhancement sheets 40 are provided, and the surfaces of the two brightness enhancement sheets 40 far away from the diffusion sheet are both in a sawtooth shape, and the sawtooth parts are mutually matched in an orthogonal mode. In this embodiment, the brightness enhancement film 40 is a refraction film, and two films are orthogonal to each other and used together, the brightness enhancement film 40 can be matched with the diffusion film 30 to generate a deflection angle effect, and further matched with the light guide plate 20 and the reflection sheet 10 for use, a white dot pattern is printed under the light guide plate 20, an outgoing light beam of about 60 ° is generated by using a scattering effect of the pattern, the outgoing light beam of 30 ° is converted by using a scattering and refraction effect of the diffusion film 30, and the normal direction of the light beam is further emitted to the display panel by the brightness enhancement film 40, so that components on the light surface are concentrated to the normal direction by the two orthogonal brightness enhancement films 40, thereby improving the brightness.
In the present embodiment, the blue-light absorber is preferably capable of transmitting light in a wavelength range of 440nm to 780 nm. Therefore, the perspective and lighting effect are not affected.
The present embodiment preferably further includes a protective plate 60 covering the brightness enhancement film 40. The protection plate 60 can protect the entire backlight module, especially the sawtooth portion of the brightness enhancement film 40.
Example 2
The utility model also provides a display module assembly, including the backlight unit in embodiment 1. This kind of display module's backlight unit is owing to added the blue light absorbent, consequently can obstruct the transmission of blue light at backlight unit, and display module jets out the visible light of low blue light, and it is softer to get into people's eye, can protect eyes, reduces the damage to people's eye.
Example 3
The utility model also provides an electronic equipment, including the backlight unit in embodiment 1, and/or the display module assembly in embodiment 2. The light radiated by the display panel of the electronic equipment is low-blue visible light, enters human eyes more softly, can protect the eyes and reduce the damage to the human eyes.
The utility model discloses blue light absorbent is advanced in the doping in the light guide plate, can absorb blue light and ultraviolet ray, and the seeing through of separation ultraviolet ray and blue light is and can see through the visible light, does not influence perspective and daylighting effect, and consequently when the light in the light source when the light guide plate, is absorbed in light guide plate transmission process, becomes the visible light of low blue light, passes through diffusion piece again, the piece jets out that adds lustre to, becomes soft light and gets into people's eye, protection eyes, reduces the damage to people's eye.
The above description is for illustrative purposes only and is not intended to be limiting, and the present invention is not limited to the above embodiments, and many modifications may be made by those skilled in the art without departing from the spirit and scope of the present invention.
Claims (10)
1. A backlight module is characterized by comprising,
a reflective sheet;
a light guide plate at least partially covering the reflective sheet, the light guide plate including a blue light absorber;
a diffusion sheet at least partially covering the light guide plate;
the brightness enhancement film at least partially covers the diffusion film;
and the light source is arranged on the side edge of the light guide plate.
2. A backlight module according to claim 1, wherein the blue-light absorber comprises LGXSJ-430.
3. The backlight module according to claim 1, wherein the blue light absorber is configured to absorb light in a wavelength range of 320nm to 460 nm.
4. The backlight module of claim 1, wherein the light source comprises an LED lamp.
5. The backlight module according to claim 4, wherein a lamp cover is disposed around the LED lamp.
6. The backlight module as claimed in claim 1, wherein the two brightness enhancement films are provided, and both surfaces of the two brightness enhancement films away from the diffusion film are serrated, and the serrated portions are orthogonal to each other.
7. The backlight module as claimed in claim 2, wherein the blue light absorber is capable of transmitting light in a wavelength range of 440nm to 780 nm.
8. The backlight module according to claim 1, further comprising a protective plate covering the brightness enhancement film.
9. A display module comprising the backlight module of any one of claims 1-8.
10. An electronic device, comprising the backlight module of any one of claims 1-8 and/or the display module of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122404681.6U CN218299286U (en) | 2021-09-30 | 2021-09-30 | Backlight module, display module and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122404681.6U CN218299286U (en) | 2021-09-30 | 2021-09-30 | Backlight module, display module and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218299286U true CN218299286U (en) | 2023-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122404681.6U Active CN218299286U (en) | 2021-09-30 | 2021-09-30 | Backlight module, display module and electronic equipment |
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| CN (1) | CN218299286U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117031816A (en) * | 2023-07-12 | 2023-11-10 | 惠科股份有限公司 | Backlight module and display device |
| CN117031816B (en) * | 2023-07-12 | 2024-11-08 | 惠科股份有限公司 | Backlight module and display device |
-
2021
- 2021-09-30 CN CN202122404681.6U patent/CN218299286U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117031816A (en) * | 2023-07-12 | 2023-11-10 | 惠科股份有限公司 | Backlight module and display device |
| CN117031816B (en) * | 2023-07-12 | 2024-11-08 | 惠科股份有限公司 | Backlight module and display device |
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