CN216351650U

CN216351650U - Eye-protecting display module

Info

Publication number: CN216351650U
Application number: CN202123064525.6U
Authority: CN
Inventors: 江宇锋
Original assignee: Shenzhen Jinguangbao Photoelectric Co ltd
Current assignee: Shenzhen Jinguangbao Photoelectric Co ltd
Priority date: 2021-12-08
Filing date: 2021-12-08
Publication date: 2022-04-19
Anticipated expiration: 2031-12-08

Abstract

The utility model discloses an eye protection display module, which comprises a touch panel, a glass substrate and a backlight module which are sequentially connected, wherein the glass substrate comprises an upper polaroid, a glass flow sheet and a lower polaroid which are sequentially connected, the backlight module comprises an upper brightness enhancement sheet, a lower brightness enhancement sheet and a light guide plate, the lower polaroid is a blue light filter, and the light filtering rate of the blue light filter is 25-35%.

Description

Eye-protecting display module

Technical Field

The utility model relates to the field of liquid crystal display, in particular to an eye protection display module.

Background

Liquid crystal displays are becoming the mainstream of various display devices in development due to their characteristics of lightness, thinness, energy conservation, environmental protection, and the like. People in the modern society have stronger and stronger dependence on electronic equipment, a great deal of time is provided for information interaction with display equipment such as mobile phones, computers, televisions and the like every day, and human eyes are also poisoned by blue light of electronic display screens. In order to reduce the damage of blue light to human eyes, various anti-blue light films or glasses are also available on the market. The anti-blue light film layer is prepared on the flexible substrate or glass to form the anti-blue light film or the anti-blue light glass, and then the anti-blue light film or the anti-blue light glass is pasted on the surface of the display screen to achieve the anti-blue light effect. In order to make anti blue light membrane or anti blue light glass have better anti blue light effect, and anti blue light membrane or anti blue light glass keep away from one side of display screen and can present the bluish purple, in order to satisfy people's demand, anti blue light membrane material is located anti blue light membrane or anti blue light glass's the outside usually, and the surface hardness of anti blue light membrane material is low, cause it to appear badly such as scratch easily, and the staff still takes place to change colour easily for a long time, lead to anti blue light membrane or anti blue light glass's reliability poor, this makes anti blue light membrane receive people's table disease.

Chinese utility model with publication number CN212966118U discloses a display module assembly, display screen and electronic equipment. The display module comprises a display panel and a support plate, wherein the display panel comprises one or more marks; the supporting plate is stacked with the display panel, the supporting plate comprises a light-transmitting part and a non-light-transmitting part, the non-light-transmitting part is used for blocking light of the display panel to penetrate, the orthographic projection of the light-transmitting part on the display panel covers at least part of the mark, and the display module is not good in light diffusion and eye protection effects.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provides the eye protection display module for filtering blue light and efficiently protecting eyes.

The purpose of the utility model is realized by the following technical scheme:

the utility model provides an eyeshield display module assembly, includes consecutive touch panel, glass substrate and backlight unit, the glass substrate is including the last polaroid, glass slide and the lower polaroid that connect gradually, backlight unit includes the piece of intensifying, the piece of intensifying down, light guide plate, the lower polaroid is the blue light filter, the blue light filter light filtration rate is 25% -35%.

Furthermore, the backlight module also comprises a light source which is an LED, an EL or a CCFL.

Further, the touch panel comprises a cover plate which is a frosted cover plate.

Further, the diffusivity of the light guide plate is 70% -90%.

Further, the blue filter is optical grade PET.

Further, the glass substrate is a transparent substrate having an isotropic refractive index.

Further, the thickness of the upper polarizer and the lower polarizer is 0.11mm to 0.24 mm.

Furthermore, the outer side surface and the inner side surface of the glass substrate are respectively provided with a first adhesive layer and a second adhesive layer, and the first adhesive layer, the glass substrate and the second adhesive layer form a mechanical connection between the touch panel and the backlight module.

Compared with the prior art, the utility model has the following advantages and beneficial effects:

when the utility model is applied to electronic equipment, the utility model can play a role of protecting eyes, reduce the light reflection degree to the eyes and has the effect of highly filtering blue light, the upper polaroid, the glass flow sheet and the lower polaroid are positioned between the first adhesive layer and the second adhesive layer and are protected by the touch panel, thereby effectively avoiding the problem that the blue light filtering film is easy to fall off and be scratched because the eye protecting film with the traditional structure is positioned outside the transparent substrate, and the problem that the blue light filtering film is corroded and discolored because the traditional eye protecting film is directly contacted by hands can not be generated, the eye protecting display module can not influence the light transmittance, can also achieve the effect of filtering blue light and effectively prevent the blue light from causing irreversible damage to eyeballs.

Drawings

FIG. 1 is a schematic view of an eye-protecting display module;

FIG. 2 is a schematic view of a glass substrate structure;

FIG. 3 is a schematic view of a backlight module.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.

As shown in fig. 1 and 3, an eye protection display module comprises a touch panel 2, a glass substrate 3 and a backlight module 4 which are connected in sequence, wherein the glass substrate 3 comprises an upper polarizer 32, a glass flow sheet 33 and a lower polarizer 34 which are connected in sequence, the backlight module 4 comprises an upper light adding sheet 41, a lower light adding sheet 42 and a light guide plate 43, the lower polarizer 34 is a blue light filtering sheet, the light filtering rate of the blue light filtering sheet is 25-35%, and the eye protection display module can be applied to smart phones, computers, televisions, electronic watches, flat panels and the like.

The backlight module 4 further comprises a light source which is an LED, an EL or a CCFL.

Touch panel 2 includes apron 1, apron 1 is dull polish apron, can reduce the reflection of light degree to people's eye. The light guide plate 43 has a diffusivity of 70% to 90%, and converts a linear light source into a surface light source. The blue light filtering sheet is optical-grade PET, the light transmittance is up to 92%, the blue light shielding effect is up to 35%, the filtered blue light refers to blue light with the wavelength below 455nm, and the radiation damage of the blue light is strongest and has great damage to people. The blue light generated by the artificial display is mainly the short-wave blue light, so that the short-wave blue light can generate various influences on the body when the artificial display is seen for a long time.

The high-energy short-wave blue light can penetrate through a cornea and a crystalline lens to reach a macular area at the bottom of a retina, so that the retinal pigment epithelial cells die, the photosensitive cells lack nutrients, and finally an irreversible eye disease, namely macular degeneration, can be caused. "photoaging". The blue light irradiation of 410-420nm can cause oxidative stress and cytotoxicity to cells; and when the hair is irradiated by using the blue light of 410, 420 and 453nm, the antioxidant capacity of fibroblasts can be reduced, skin photoaging is caused, and sleep is affected. Melatonin, a hormone that promotes sleep, is usually elevated before sleep; in a study in foreign countries, it was found that melatonin is suppressed by using a light-emitting e-book before sleep. Meanwhile, the secretion cycle of melatonin is delayed, thereby causing poor sleep quality or insomnia. In the experiment, a person who reads 4 hours per night using an electronic product starts to secrete melatonin more than 1.5 hours later than a person who reads a paper book 4 hours per night.

The glass substrate 3 is a transparent substrate with an isotropic refractive index, the transparent substrate can be a transparent organic substrate commonly used in the field, and the light transmittance of the transparent substrate is more than 91.5%; the refractive index of the transparent substrate is 1.52 to ensure high transmittance of the touch panel 2, and specifically, the transparent organic substrate may be PET (polyethylene terephthalate), PMMA (polymethyl methacrylate), PC (polycarbonate), or COP (cyclic olefin polymer).

The thicknesses of the upper polarizer 32 and the lower polarizer 34 are 0.11mm to 0.24 mm.

As shown in fig. 2, the outer side surface and the inner side surface of the glass substrate 3 are respectively provided with a first adhesive layer 31 and a second adhesive layer 35, the first adhesive layer 31, the glass substrate 3 and the second adhesive layer 35 form a mechanical connection between the touch panel 2 and the backlight module 4, the first adhesive layer 31 and the second adhesive layer 35 are OCA adhesive layers or OCR adhesive layers, and the OCA adhesive layers and the OCR adhesive layers not only have high light transmittance (more than 90%), but also have low refractive index (less than 1.5).

Example 1

In the eye protection display module provided by the utility model, the glass substrate 3 comprises an upper polarizer 32, a glass flow sheet 33 and a lower polarizer 34 which are connected in sequence, and the backlight module 4 comprises an upper brightness enhancement sheet 41, a lower brightness enhancement sheet 42 and a light guide plate 43 which are connected in sequence.

It should be noted that the lower polarizer 34 is a blue light filter, the blue light filter has a light filtering rate of 25% to 35%, and the lower polarizer 34 is a fog filter and does not use a light filter.

As an optimization, LED is selected for use to the light source of backlight unit 4, PET is selected for use to glass substrate 3, first glue film 31 and second glue film 35 are the OCA glue film, the light source passes through light guide plate 43, switch on the light source more than 90%, make light reinforcing through last piece 41 and lower piece 42 of adding lustre to again, light source is to glass substrate 3's lower polaroid 34 after that, also be the blue light is strained to the high fog, it can reach 35% to filter the blue light, flow piece 33 and last polaroid 32 through the glass, the light source that the diffusion came out makes eyeshield display module group formation of image more clear even, filter behind the blue light, reach the eyeshield effect.

Example 2

In the eye protection display module provided by the utility model, the glass substrate 3 comprises an upper polaroid 32, a glass flow sheet 33 and a lower polaroid 34 which are sequentially connected, the backlight module 4 comprises an upper brightness enhancement sheet 41, a lower brightness enhancement sheet 42 and a light guide plate 43 which are sequentially connected, the lower polaroid 34 is a blue light filtering sheet, the light filtering rate of the blue light filtering sheet is 25-35%, and the lower polaroid 34 is a fog sheet without a light sheet.

As an optimization, LED is selected for use to the light source of backlight unit 4, PET is selected for use to glass substrate 3, first glue film 31 and second glue film 35 are the OCR glue film, the light source passes through light guide plate 43, switch on the light source more than 90%, make light reinforcing through last piece 41 and lower piece 42 of adding lustre to again, light source arrives glass substrate 3's lower polaroid 34 after that, just also the blue light is strained to the high fog, it can reach 35% to filter the blue light, it can reach 35% to flow piece 33 and last polaroid 32 through the glass, the light source that the diffusion came out makes eyeshield display module group formation of image more clear even, filter the blue light after, reach the eyeshield effect.

It should be understood that the above-described embodiments are merely preferred embodiments of the present invention and the technical principles applied thereto, and that any changes, modifications, substitutions, combinations and simplifications made by those skilled in the art without departing from the spirit and principle of the present invention shall be regarded as equivalent substitutions and shall be covered by the protection scope of the present invention.

Claims

1. The utility model provides an eyeshield display module assembly which characterized in that: the backlight module comprises an upper light intensifying plate, a lower light intensifying plate and a light guide plate, wherein the upper light intensifying plate, the glass substrate and the backlight module are sequentially connected, the glass substrate comprises the upper light intensifying plate, the glass flow plate and the lower light intensifying plate, the backlight module comprises the upper light intensifying plate, the lower light intensifying plate and the light guide plate, the lower light intensifying plate is a blue light filtering plate, and the light filtering rate of the blue light filtering plate is 25% -35%.

2. The eye-protecting display module set of claim 1, wherein: the backlight module also comprises a light source which is LED, EL or CCFL.

3. The eye-protecting display module set of claim 2, wherein: the touch panel comprises a cover plate which is a frosted cover plate.

4. The eye-protecting display module set of claim 3, wherein: the diffusivity of the light guide plate is 70% -90%.

5. The eye-protecting display module set of claim 4, wherein: the blue filter is optical grade PET.

6. The eye-protecting display module set of claim 5, wherein: the glass substrate is a transparent substrate having an isotropic refractive index.

7. The eye-protecting display module set of claim 6, wherein: the thickness of the upper polarizer and the lower polarizer is 0.11mm to 0.24 mm.

8. The eye-protecting display module set of claim 7, wherein: the outer side face and the inner side face of the glass substrate are respectively provided with a first adhesive layer and a second adhesive layer, and the first adhesive layer, the glass substrate and the second adhesive layer form mechanical connection between the touch panel and the backlight module.