CN216526614U - Display module, display device and mobile terminal - Google Patents

Abstract

A display module, a display device and a mobile terminal comprise a cover plate; the display screen is arranged at a position opposite to the cover plate; and the optical adhesive layer is arranged between the cover plate and the display screen, and is doped with blue light absorption particles. According to the utility model, the blue light absorption particles are doped in the optical adhesive layer to absorb the blue light emitted by the light source, so that the low-blue light effect is achieved, further, the damage to human eyes is reduced, and the eyesight of a user is protected.

Description

Display module, display device and mobile terminal

Technical Field

The utility model relates to the technical field of display, in particular to a display module, a display device and a mobile terminal.

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, a problem is serious when the electronic product is used for a long time, and 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 damage is more serious for children and old people.

Therefore, if a method is tried to filter high-energy short-wave blue light emitted from a display, designing a product with blue light resistance has important significance and application value.

Disclosure of Invention

In view of the above problems, an object of the present invention is to provide a display module, a display device and a mobile terminal, in which blue light absorbing particles are doped in an OCA optical adhesive layer to filter out blue light emitted from a backlight source, thereby reducing and preventing the blue light emitted from damaging human eyes.

In order to solve the problems existing in the background technology, the utility model provides the following technical scheme:

a display module, comprising:

a cover plate;

the display screen is arranged at a position opposite to the cover plate;

and the optical adhesive layer is arranged between the cover plate and the display screen, and is doped with blue light absorption particles.

As the preferred technical scheme, the optical adhesive layer is a blue light prevention OCA optical adhesive layer.

As a preferred technical scheme, the cover plate is fully attached to the display screen through the optical adhesive layer.

As a preferred technical scheme, the display screen is an LCD display screen or an LED display screen.

Preferably, the blue light absorbing particles are capable of absorbing at least part of the ultraviolet and/or high energy short wavelength blue light.

As a preferred technical scheme, the blue light absorbing particles are uniformly distributed inside the optical adhesive layer.

Preferably, the blue light absorbing particles are azo-phenyl group compounds.

As a preferred technical scheme, the blue light absorbing particle is LGXSJ-430, and the LGXSJ-430 comprises azo phenyl methacrylate.

As a preferred technical scheme, the blue light absorbing particles absorb light in a wavelength band of 320nm-460 nm.

The application also includes a display device comprising the display module according to the application.

The application also comprises a mobile terminal comprising the display module.

The technical scheme adopted by the utility model can achieve the following beneficial effects:

1. can absorb OCA optical cement of blue light through the adoption with apron and LED LCD screen or LCD screen laminating, reach the low blue light effect of display module assembly, and then reduce the damage to people's eyes, reach the purpose of protection people's eyes.

2. In mobile terminal equipment, through adopting OCA optical cement that absorbs the blue light to laminate apron and LCM, its backlight sends high energy shortwave blue light and filters through OCA optical cement layer, protection user's that can be fine eyesight.

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 described below, and form a part of the present invention, and the exemplary embodiments and the description thereof illustrate the present invention and do not constitute an undue limitation on the utility model. In the drawings:

fig. 1 is a schematic structural diagram of a display module disclosed in embodiment 1 of the present invention;

fig. 2 is a schematic structural diagram of a display module disclosed in embodiment 1 of the present invention;

description of reference numerals:

a cover plate 10; an optical adhesive layer 11; a first polarizing plate 12A; a second polarizing plate 12B; an LCD display 13; a backlight module 14; an LED display screen 15.

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. In the description of the present invention, it is noted that the term "or" is generally employed in its sense including "and/or" unless the content clearly dictates otherwise.

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

The present embodiment 1 provides a display device including:

a cover plate 10;

a display screen disposed at a position opposite to the cover plate 10;

and the optical adhesive layer 11 is arranged between the glass cover plate 10 and the display screen 12, and the optical adhesive layer 11 is doped with blue light absorption particles. Preferably, the optical adhesive layer 11 is a blue light-proof OCA optical adhesive layer.

The OCA optical cement is one of the raw materials of the important touch screen. The optical acrylic adhesive is made into a double-sided adhesive tape without a base material, and then a layer of release film is respectively adhered to an upper bottom layer and a lower bottom layer. It is the best adhesive for touch screens. Its advantages are high clarity, high transparency, high adhesion, weatherability, water resistance, high temp and ultraviolet resistance, controlled thickness, uniform spacing, and no yellowing, stripping and deterioration.

OCA optical cement is divided into two categories, one is resistive type, the other is capacitive type, the resistive type optical cement can be divided into 50um and 25um according to different thicknesses, and the capacitive type optical cement is divided into 100um, 175um, 200um and 250 um.

The OCA optical adhesive can be applied to different fields according to different thicknesses, and is mainly used for bonding special adhesives for bonding transparent optical elements by bonding plastic materials such as electronic paper, transparent devices, projection screen assembly, aerospace or military optical device assembly, display assembly, lens assembly, resistive touch screen G + F + F, F + F, capacitive touch screen, panel, ICON, glass, polycarbonate and the like. The light-transmitting adhesive is required to be colorless and transparent, has the light transmittance of more than 90 percent, has good adhesive strength, can be cured at room temperature or middle temperature, and has the characteristics of small curing shrinkage and the like. Adhesives such as silicone rubber, acrylic resins, unsaturated polyesters, polyurethanes, and epoxy resins can be used to bond the optical elements. Some treatment is usually added during formulation to improve the optical properties or reduce cure shrinkage. Various films, screens (acrylic, glass screens, touch screens, etc.) suitable for fixing the display periphery of mobile machines.

Therefore, the application range of the OCA optical adhesive tape is wider and wider, and the OCA optical adhesive tape can be widely used for automobile explosion-proof films, building heat-insulating films, mobile phone blue-proof films and labels (which can replace soluble pressure-sensitive adhesives).

Blue light is an important component of visible light, natural world does not have independent white light, and the blue light, green light and red light are mixed to form white light. The green light and the red light have small energy, small stimulation to eyes, short blue light wave and high energy, and can directly penetrate through crystalline lens to directly reach the macular area of the eyes, thereby causing macular degeneration.

Blue light is not harmful blue light, but is really harmful high-energy blue light within 400 to 460 nanometers, and the blue light between 460 to 500 nanometers has the function of adjusting biological rhythm, and is related to sleep, emotion, memory and the like, so that the blue light is beneficial to human bodies. And short-wave blue light is not certain to cause damage to human eyes, which is related to irradiation intensity and irradiation time, and when the illumination reaches a certain degree and lasts for more than two hours, damage to a retina is possible. In our life, the really high irradiation intensity wavelength range is high-energy short-wave blue light of 420-.

The basic structure of the present display module is, in order from top to bottom, a glass cover plate 10, a first polarizer 12A, LCD, a display 13, a second polarizer 12B, and a backlight module 14. The glass cover plate 10 and the first polarizer 12A are bonded together by the transparent optical adhesive 11 to form a display module.

According to fig. 1, the present application is a blue light-proof OCA optical adhesive layer doped with blue light-absorbing particles in an optical adhesive layer 11. Backlight unit sets up in second polaroid 12B surface, sends the visible light back when the backlight, sees through LCD display 13, absorbs the particle through the blue light at OCA optical cement layer 11 and filters high-energy shortwave blue light, and then sends out the light that gets into people's eye from glass apron 10 and be low blue light, reduces the damage to people's eye.

The light emitting principle of the LCD mainly depends on the backlight module, and the LED does not need the backlight module and can self-emit light. The basic structure is shown in fig. 2, since the LED liquid crystal panel is composed of an arrangement of light emitting diodes, an LED light source, i.e., a light emitting diode, is used. The light source that LED sent sees through OCA optical cement layer 11 and absorbs the particle through blue light and absorb high-energy shortwave blue light and filter, and then sends out the light that gets into people's eye from glass apron 10 and be low blue light, protection user's that can be fine eyesight.

It should be noted that the various optical elements in fig. 1 and 2 are not true to scale.

Preferably, the blue light-absorbing particles are LGXSJ-430, and the LGXSJ-430 comprises azophenyl methacrylate as a main component. The material and the optical acrylic adhesive are doped according to a certain proportion, then a layer of release film is respectively attached to the upper bottom layer and the lower bottom layer, the blue-light-proof OCA double-sided adhesive tape is manufactured, and the material is uniformly distributed in the OCA optical adhesive layer. In addition, the material has a good blue light absorption effect, and can absorb ultraviolet rays and high-energy short-wave blue light in a wave band of 320nm-460 nm. Since blue light absorption can cause reduction of light emission of the LCD display screen and reduction of the brightness of the display screen, the doping amount needs to be comprehensively considered by combining two factors of the blue light absorption effect and the brightness of the display screen, and the doping amount can be adjusted according to the state of a sample in actual production and can also be set by a person skilled in the art according to actual requirements, which is not specifically limited in the embodiment of the utility model.

Preferably, the cover glass 10 and the first polarizer 12A are completely attached to each other through the blue light-proof OCA optical adhesive layer. The full-lamination technology can better adhere to gaps among all layers, reduce the entering probability of air and dust and keep the cleanliness of the screen; the full-lamination technology eliminates air between screens, can greatly reduce the reflection of light rays and reduce the loss of transmitted light rays so as to improve the brightness, enhance the display effect of the screens and ensure that pictures are more transparent; the full-lamination screen also has the characteristic of being more ultrathin compared with the traditional screen.

Example 2

The present embodiment also provides a display device including the display device given in embodiment 1 above.

The embodiment also provides a mobile terminal, which comprises the display device provided by the embodiment 1.

The above detailed description is made on a new process of a vehicle-mounted display glass cover plate, a touch screen and an electronic device in the embodiment of the present application, and a specific example is applied in the detailed description to explain the principle and the implementation manner of the present application, and the description of the above embodiment is only used to help understanding the method and the core idea of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims (10)

1. A display module, comprising:

a cover plate;

the display screen is arranged at a position opposite to the cover plate;

and the optical adhesive layer is arranged between the cover plate and the display screen, and is doped with blue light absorption particles.

2. The display module of claim 1, wherein the optical adhesive layer is a blue light blocking OCA optical adhesive layer.

3. The display module assembly of claim 1, wherein the cover plate is fully attached to the display screen through the optical adhesive layer.

4. The display module of claim 1, wherein the display screen is an LCD display screen or an LED display screen.

5. A display module according to claim 1, characterized in that the blue-absorbing particles are capable of absorbing at least part of uv and/or short wavelength high energy blue light.

6. The display module of claim 1, wherein the blue light absorbing particles are uniformly distributed inside the optical adhesive layer.

7. The display module of claim 1, wherein the blue light absorbing particles are azo-phenyl group compounds.

8. The display module of claim 7, wherein the blue-light absorbing particles absorb light in the wavelength range of 320nm to 460 nm.

9. A display device, comprising the display module according to any one of claims 1 to 7.

10. A mobile terminal, characterized in that it comprises a display module according to any one of claims 1 to 7.

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