CN216527800U - Backlight module, display module and electronic equipment - Google Patents
Backlight module, display module and electronic equipment Download PDFInfo
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- CN216527800U CN216527800U CN202122420139.XU CN202122420139U CN216527800U CN 216527800 U CN216527800 U CN 216527800U CN 202122420139 U CN202122420139 U CN 202122420139U CN 216527800 U CN216527800 U CN 216527800U
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- backlight module
- blue light
- guide plate
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Abstract
The utility model discloses a backlight module, a display module and electronic equipment, wherein the backlight module comprises a reflector plate; a light guide plate at least partially covering the reflective sheet; a diffusion sheet at least partially covering the light guide plate, the diffusion sheet including a blue light absorber; 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. According to the utility model, the blue light absorbent is doped in the diffusion sheet, so that the blue light absorbent can absorb blue light and ultraviolet light, block the transmission of the ultraviolet light and the blue light and can transmit visible light, and the perspective and lighting effects are not influenced.
Description
Technical Field
The utility model relates to the technical field of display modules, in particular to a backlight module, a display module 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 old people. Therefore, the blue light emitted from the display is filtered out, and the product with the blue light resistance is designed, so that the method has important significance and application value.
In view of this, there is a need to improve the conventional backlight module to block the uv light and the blue light from transmitting through the backlight module.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a backlight module, a display module and electronic equipment, which are used for solving the problem that blue light radiated in the display module harms eye health in the prior art.
In order to solve the problems, 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;
a diffusion sheet at least partially covering the light guide plate, the diffusion sheet including a blue light absorber;
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 scheme, 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 scheme, the periphery of the LED lamp is provided with the lamp cover.
In the scheme, the two brightness enhancement sheets are arranged, one surfaces of the two brightness enhancement sheets far away from the diffusion sheet are both in a sawtooth shape, and the sawtooth parts are mutually matched in an orthogonal mode.
In the above aspect, the blue light absorber is capable of transmitting light in a wavelength range of 440nm to 780 nm.
In the above scheme, the brightness enhancement film is covered by a protection plate.
The utility model also provides a display module comprising the backlight module in any one of the above schemes.
The utility model further provides electronic equipment comprising the backlight module in any one of the above schemes and/or the display module in the above schemes.
The technical scheme adopted by the utility model can achieve the following beneficial effects:
blue light absorbent is gone into in the diffusion sheet to the doping, can absorb blue light and ultraviolet ray, and the transmission of separation ultraviolet light and blue light is and can see through visible light, does not influence perspective and daylighting effect, consequently when the light in the light source when diffusing the piece, is absorbed in light transmission in-process, becomes the visible light of low blue light, jets out through the piece that adds lustre to again, becomes soft light and gets into people's eye, protection eyes, reduces the damage to people's eye.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below to form a part of the present invention, and the exemplary embodiments and the description thereof illustrate the present invention and do not constitute a limitation of 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 signs are specifically 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
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1, the backlight module provided by the present invention comprises,
a reflective sheet 10; a light guide plate 20 at least partially covering the reflective sheet 10; a diffusion sheet 30 at least partially covering the light guide plate 20, the diffusion sheet 30 including a blue light absorber; 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.
According to the utility model, the blue light absorbent is doped in the diffusion sheet 30, so that the blue light absorbent can absorb blue light and ultraviolet light, block the transmission of the ultraviolet light and the blue light and can transmit visible light, and the perspective and lighting effects are not influenced, therefore, when the light in the light source 50 passes through the diffusion sheet 30, the light is absorbed in the light transmission process, is changed into visible light with low blue light, is emitted out through the brightness enhancement sheet 40, is changed into soft light, enters human eyes, protects the eyes, and reduces the damage to the human eyes.
Preferably, the blue light absorber of this embodiment comprises LGXSJ-430. The LGXSJ-430 absorption peak is in the 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 can block the transmission of ultraviolet light and blue light by absorbing ultraviolet light and blue light with the wave band of 320-460 nm. Meanwhile, the film can transmit 440 nm-780 nm visible light without influencing the perspective and lighting effects. LGXSJ-430 is in powder form and is suitable for incorporation into diffuser sheet 30 to achieve the effect of blocking the blue light band for the visible portion. Because the molecular structure has good compatibility with organic solvents, the effect of blocking blue light can be achieved by only 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, the volume of the LED lamp can be small, the LED lamp is suitable for being used as a backlight source, the color of the light source 50 is also multiple, and the LED lamp 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, the LED lamp is preferably provided with a lamp cover 51 on the outer periphery thereof. 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, 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, a white dot pattern is printed under the light guide plate 20, an outgoing beam of about 60 ° is generated by using a scattering effect of the pattern, and then the outgoing beam of 30 ° is changed by using a scattering refraction effect of the diffusion film 30, and the normal direction of the beam is further emitted to the display panel by the brightness enhancement film 40, so that each component on the smooth surface is concentrated to the normal direction by the two brightness enhancement films 40 which are orthogonal to each other, thereby improving the brightness.
In this embodiment, the blue light absorber preferably transmits light in a wavelength range of 440nm to 780 nm. Therefore, the perspective and lighting effect are not affected.
Preferably, the present embodiment further includes a protection 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 comprising the backlight module in the 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 electronic equipment comprising the backlight module in the embodiment 1 and/or the display module in the 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.
According to the utility model, the blue light absorbent is doped in the diffusion sheet, so that the blue light absorbent can absorb blue light and ultraviolet light, block the transmission of the ultraviolet light and the blue light and can transmit visible light, and the perspective and lighting effects are not influenced.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the utility model as defined in the appended claims.
Claims (10)
1. A backlight module is characterized by comprising,
a reflective sheet;
a light guide plate at least partially covering the reflective sheet;
a diffusion sheet at least partially covering the light guide plate, the diffusion sheet including a blue light absorber;
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 as claimed in claim 1, wherein the blue light absorber is used for absorbing light in the 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 as claimed in claim 4, wherein the LED lamp is provided with a lamp cover at the periphery thereof.
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 as claimed in 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 |
|---|---|---|---|
| CN202122420139.XU CN216527800U (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 |
|---|---|---|---|
| CN202122420139.XU CN216527800U (en) | 2021-09-30 | 2021-09-30 | Backlight module, display module and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216527800U true CN216527800U (en) | 2022-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122420139.XU Active CN216527800U (en) | 2021-09-30 | 2021-09-30 | Backlight module, display module and electronic equipment |
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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 CN202122420139.XU patent/CN216527800U/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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