CN107182175B - Display device and integrated display cover plate thereof - Google Patents

Display device and integrated display cover plate thereof Download PDF

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Publication number
CN107182175B
CN107182175B CN201710464299.XA CN201710464299A CN107182175B CN 107182175 B CN107182175 B CN 107182175B CN 201710464299 A CN201710464299 A CN 201710464299A CN 107182175 B CN107182175 B CN 107182175B
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CN
China
Prior art keywords
film
cover plate
display device
substrate
nm
Prior art date
Application number
CN201710464299.XA
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Chinese (zh)
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CN107182175A (en
Inventor
刘源
张文庆
崔子龙
宋先保
李锋
李志成
李建华
Original Assignee
信利光电股份有限公司
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Priority to CN201710464299.XA priority Critical patent/CN107182175B/en
Publication of CN107182175A publication Critical patent/CN107182175A/en
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Publication of CN107182175B publication Critical patent/CN107182175B/en

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Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00Casings, cabinets or drawers for electric apparatus
    • H05K5/02Details
    • H05K5/0217Mechanical details of casings
    • H05K5/0243Mechanical details of casings for decorative purposes
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00Casings, cabinets or drawers for electric apparatus
    • H05K5/02Details
    • H05K5/03Covers

Abstract

The application provides a display device and an integrated display cover plate thereof, wherein the integrated display cover plate comprises a substrate and a multilayer film structure positioned on the substrate; the multilayer film structure includes: a plurality of first films and a plurality of second films which are cross-laminated; wherein the refractive index of the first thin film is greater than the refractive index of the second thin film. The refractive index difference between the multilayer films is utilized, so that the overall reflectivity of the multilayer film structure is different, and the light with different colors can be reflected, so that the user can see different colors displayed by the cover plate by human eyes, and further, the color of the cover plate is displayed in the frame area and the display area under the screen state of the display device, the integration of the cover plate is realized, the appearance of the display device is improved, and the user experience is improved.

Description

Display device and integrated display cover plate thereof

Technical Field

The invention relates to the technical field of display, in particular to a display device and an integrated display cover plate thereof.

Background

Along with the development of touch display technology, the application of touch display is also more and more extensive, and the touch display module can be applied to portable electronic equipment, for example: in consumer electronics products such as tablet computers, smart phones, notebook computers, smart homes, POS machines, printers, ATMs, etc., a Touch display Module mainly includes a Touch Panel Module (Touch Panel Module) and a display Module.

Along with electronic equipment's outward appearance is diversified, it is multiple colours such as champagne gold, rose gold to have appeared the backshell colour in the market, but display device's front shroud still is transparent, as shown in fig. 1, for display device structure schematic diagram among the prior art, including frame region 100 and display region 200, display device's frame region forms white or black frame through the surperficial silk screen printing white ink or the black ink of at the front shroud towards display module assembly among the prior art at present, some producers are through the colour that changes the regional silk screen printing ink of frame, it makes display device present the diversification to change the regional colour of frame, in order to improve user experience.

However, no matter in the application of mobile phones or smart homes, the display area of the display device is black in the state of the screen, as shown in the display area 200 in fig. 1, the diversified frame design and the black display screen always appear to be obtrusive, and how to integrate the display screen with the surrounding design in the state of the screen becomes an urgent problem to be solved.

Disclosure of Invention

In view of this, the present invention provides a display device and an integrated display cover plate thereof, so as to solve the problems in the prior art that the display screen is black in the state of the information screen, and is more obtrusive than diversified frame designs, and the user experience is poor.

In order to achieve the purpose, the invention provides the following technical scheme:

an integrated display cover, comprising:

a substrate, a multilayer film structure on the substrate;

the multilayer film structure includes: a plurality of first films and a plurality of second films which are cross-laminated;

wherein the refractive index of the first thin film is greater than the refractive index of the second thin film.

Preferably, the number of layers of the first film is the same as the number of layers of the second film.

Preferably, the thicknesses of the plurality of layers of the first film are not equal.

Preferably, the thicknesses of the plurality of layers of the second film are not equal.

Preferably, the first film is a titanium dioxide film, and the second film is a silicon dioxide film.

Preferably, the integrated display cover plate is rose red in color.

Preferably, the multilayer film structure comprises, in order in a direction away from the substrate:

a silica thin film with a thickness of 400nm to 500 nm;

a titanium dioxide film with the thickness of 50 nm-70 nm;

a silica film having a thickness of 85nm to 105 nm;

a titanium dioxide film with the thickness of 55 nm-75 nm;

a silica film with a thickness of 330nm to 350 nm;

a titanium dioxide film with the thickness of 45 nm-65 nm;

both inclusive.

Preferably, the first film is a niobium pentoxide film or a silicon nitride film, and the second film is a silicon dioxide film.

Preferably, the substrate is a glass substrate or an acrylic substrate.

Preferably, the substrate is a frosted substrate.

Preferably, the surface of the substrate facing the multilayer film structure is a surface with anti-glare particles.

Preferably, the number of layers of the first film is different from the number of layers of the second film.

The invention also provides a display device, which comprises a display device body and a cover plate covering the display device body, wherein the cover plate is the integrated display cover plate.

Preferably, the display device is a liquid crystal display device, an organic light emitting diode display device, an LED display device, or electronic paper.

According to the technical scheme, the display device and the integrated display cover plate provided by the invention are characterized in that the integrated display cover plate comprises a substrate and a multilayer film structure positioned on the substrate; the multilayer film structure includes: a plurality of first films and a plurality of second films which are cross-laminated; wherein the refractive index of the first thin film is greater than the refractive index of the second thin film. The refractive index difference between the multilayer films is utilized, so that the overall reflectivity of the multilayer film structure is different, and light with different colors can be reflected, so that a user can see different colors displayed by the cover plate through human eyes, and further, the color of the cover plate is displayed in the frame area and the display area under the screen state of the display device, and the integration of the cover plate is realized.

The integrated display cover plate provided by the invention can display different colors, so that the display device provided by the invention can show an integrated integral effect, if the display device is a mobile phone, the rear cover of the display device is rose gold, and the integrated display cover plate is also rose gold, so that the display device can be used as an ornament in a screen-saving state, and the problem of poor user experience caused by black display area and salience in the screen-saving state can be solved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a diagram illustrating a state of a breath screen of a display device according to the prior art;

FIG. 2 is a schematic diagram of a front cover plate structure provided in the prior art;

fig. 3 is a schematic cross-sectional structure diagram of an integrated display cover plate according to an embodiment of the present invention;

fig. 4 is a schematic view illustrating a breath screen state of a display device according to an embodiment of the present invention;

fig. 5 is a schematic view illustrating a lighting state of the display device according to the embodiment of the invention.

Detailed Description

As described in the background art, in the prior art, in the state of a touchscreen, the display areas of the display device all display black, and the diversified frame design and the black display screen always appear to be obtrusive, which results in poor user experience. In view of this problem, a display device having a color front cover formed by attaching a device film to the front cover, such as a deep blue adhesive film, is also gradually appearing in the market. Specifically, as shown in fig. 2, the front cover plate includes a substrate 01 and a decorative film 03, and the substrate 01 and the decorative film 03 are adhered by an optical cement 02 having a high light transmittance or a black ink is directly printed on the substrate to form the decorative film, so that the whole cover plate displays light of one color.

Based on this, the present invention provides an integrated cover plate, comprising:

a substrate, a multilayer film structure on the substrate;

the multilayer film structure includes: a plurality of first films and a plurality of second films which are cross-laminated;

wherein the refractive index of the first thin film is greater than the refractive index of the second thin film.

The integrated display cover plate provided by the invention comprises a substrate, a multilayer film structure positioned on the substrate; the multilayer film structure includes: a plurality of first films and a plurality of second films which are cross-laminated; wherein the refractive index of the first thin film is greater than the refractive index of the second thin film. The refractive index difference between the multilayer films is utilized, so that the overall reflectivity of the multilayer film structure is different, and light with different colors can be reflected, so that a user can see different colors displayed by the cover plate through human eyes, and further, the color of the cover plate is displayed in the frame area and the display area under the screen state of the display device, and the integration of the cover plate is realized.

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.

The embodiment of the invention provides an integrated display cover plate, which comprises a substrate and a multilayer film structure, wherein the multilayer film structure is positioned on the substrate; the multilayer film structure includes: a plurality of first films and a plurality of second films which are cross-laminated; wherein the refractive index of the first thin film is greater than the refractive index of the second thin film.

It should be noted that, in the embodiment of the present invention, specific thicknesses of the multiple first thin films and the multiple second thin films are not limited, in the embodiment of the present invention, the thicknesses of the multiple first thin films may be the same or different, and the thicknesses of the multiple second thin films may be the same or different, and in the embodiment of the present invention, without limitation, the relationship between the thicknesses of the first thin film and the second thin film is specifically set according to an actually required color of the substrate. In the embodiment of the present invention, optionally, the thicknesses of the plurality of first thin films are different, and the thicknesses of the plurality of second thin films are also different.

In the embodiment of the present invention, the number of the first thin film and the number of the second thin film are not limited, the number of the first thin film may be the same as the number of the second thin film, or the number of the first thin film may be different from the number of the second thin film, as long as a cross-laminated multilayer film structure is formed.

In the embodiment of the present invention, the stacking order of the first film and the second film on the substrate is not limited, and the first film may be located between the second film and the substrate, or the second film may be located between the first film and the substrate, specifically, the color design is designed according to the actual reflection, which is not limited in this embodiment.

In the embodiment of the present invention, the materials of the first film and the second film are not limited, as long as the refractive index of the first film is different from the refractive index of the second film, and the first film and the second film are both made of transparent materials. Optionally, in this embodiment, the material with a high refractive index may be niobium pentoxide (Nb)2O5) Silicon nitride (Si)3N4) Titanium dioxide (TiO)2) The material with low refractive index can be silicon dioxide (SiO)2) For example, this is not limited in this embodiment.

By repeatedly superposing a plurality of first films and second films with different refractive indexes, different first film thicknesses and second film thicknesses, and different numbers of layers of the first films and the second films are used according to different reflected colors. In this embodiment, the manufacturing processes of the first film and the second film can be realized by vapor deposition, magnetron sputtering, plating and other processes, and the processes are simple, and compared with a film pasting process in the prior art, the processes such as alignment are not required, so that the integrated display cover plate is simpler to manufacture.

It should be noted that, in the embodiment of the present invention, the substrate may be made of any transparent material, and optionally, according to the hardness requirement and the light transmittance requirement of the display device, the substrate is a glass substrate or an acrylic (polymethyl methacrylate) substrate, and the acrylic substrate may also be called organic glass.

In addition, in order to improve the anti-glare function of the cover plate of the display device, optionally, the substrate can also be a frosted substrate, and the frosted effect is manufactured on the substrate, so that the mirror reflection of the integrated cover plate is prevented from occurring, and discomfort is caused to eyes of a user.

The mode of manufacturing the frosted substrate is not limited in this embodiment, and optionally, the frosted glass with the frosting effect can be obtained by sand blasting or etching for the substrate made of glass; for transparent substrates such as acrylic substrates, a frosting effect can be achieved through soaking, evaporation or curtain coating. This is not limited in this embodiment, and different processes may be selected according to actual requirements.

It should be noted that the frosted effect may be made on one surface of the substrate or on two opposite surfaces of the substrate, the surface facing away from the multilayer film structure is a surface with anti-glare particles, and the color emitted from the surface facing the multilayer film structure on the substrate is more uniform for the surface making the frosted effect. Therefore, in this embodiment, optionally, the surface of the substrate facing the multilayer film structure is a surface with anti-glare particles, that is, the surface of the substrate facing the multilayer film structure is a surface for making a frosted effect.

That is, in the embodiment of the present invention, the film coating treatment (evaporation or magnetron sputtering) is performed on the glass substrate or other transparent substrates, and the reflectivities of different bands in each visible light band are adjusted according to the difference between the high refractive index and the low refractive index, so that the glass substrate or other transparent substrates exhibit different colors; if the matte effect is needed, the glass substrate or other transparent substrates can be made into a frosted effect before film coating, and then film coating treatment is carried out.

The integrated display cover plate provided by the invention comprises a substrate, a multilayer film structure positioned on the substrate; the multilayer film structure includes: a plurality of first films and a plurality of second films which are cross-laminated; wherein the refractive index of the first thin film is greater than the refractive index of the second thin film. The refractive index difference between the multilayer films is utilized, so that the overall reflectivity of the multilayer film structure is different, and light with different colors can be reflected, so that a user can see different colors displayed by the cover plate through human eyes, and further, the color of the cover plate is displayed in the frame area and the display area under the screen state of the display device, and the integration of the cover plate is realized.

The rose integrated cover plate will be described in detail below as an example, but the color is not limited in the present invention.

Specifically, as shown in fig. 3, the integrated display cover includes: a substrate 1, a multilayer film structure 2 located on the substrate 1; the multilayer film structure 2 includes: a plurality of second films (211, 212, 213) and a plurality of first films (221, 222, 223) which are cross-laminated; wherein the second thin film (211, 212, 213) has a refractive index smaller than that of the first thin film (221, 222, 223).

It should be noted that, in the embodiments of the present invention, the thicknesses of the first films are not equal, and the thicknesses of the second films are not equal. The inventor has experimentally verified that a rose-red integrated cover plate can be obtained by using a titanium dioxide thin film with a refractive index of 2.3 as a first thin film and a silicon dioxide thin film with a refractive index of 1.46 as a second thin film, and setting the thicknesses of the first thin film and the second thin film, specifically, in a direction away from the substrate 1, the multilayer film structure sequentially comprises: a silicon dioxide film 211 having a thickness of 400nm to 500 nm; a titanium dioxide film 221 having a thickness of 50nm to 70 nm; a silica thin film 212 having a thickness of 85nm to 105 nm; a titanium dioxide film 222 having a thickness of 55nm to 75 nm; a silica thin film 213 having a thickness of 330nm to 350 nm; the titanium dioxide thin films 223 with the thickness of 45nm to 65nm comprise the end points.

In other embodiments of the present invention, the first film may also be a niobium pentoxide film or a silicon nitride film, and the thickness and the number of layers of the first film need to be changed according to the material of the first film, which is not described in detail in this embodiment. In addition, by changing the thickness range of the first film and the second film, transparent substrates of other colors can be obtained, which is also not described in detail in this embodiment.

The embodiment of the invention also provides a display device which comprises a display device body and a cover plate covering the display device body. Wherein the cover plate is the integrated display cover plate described in the above embodiments.

In the embodiment of the present invention, the display device is not limited to a specific display mode, and may be a liquid crystal display device, an organic light emitting diode display device, an LED display device, an electronic paper, or the like.

Fig. 4 is a schematic top view illustrating a screen state of a display device according to an embodiment of the present invention; the display device comprises a frame area 10 and a display area 20, and the display device adopts an integrated display cover plate, so that in the information screen state of the display device, the display device can be integrated in color except for a key part and a microphone part, and the color of the display area 20 is the same as that of the frame area 10. If the front cover plate of the mobile phone is rosy and the rear cover plate is also rosy, the whole mobile phone can be used as a rosy ornament in the state of the mobile phone screen, and the sense of the mobile phone is better for users. When the mobile phone is used, the display area is in a lighting state, as shown in fig. 5, the display influence on the picture is small, and the picture can be normally displayed.

In addition, as for a display device on an intelligent refrigerator in intelligent furniture, when the intelligent refrigerator in the prior art is in a closed state, the whole intelligent refrigerator may be silvery gray, and a display window is black; by adopting the integrated display cover plate provided by the invention, the display window can be set to have the same color as the whole color of the intelligent refrigerator by adjusting the thickness and the number of layers of the first film and the second film, so that the display of the intelligent refrigerator is integrated, and the display window part is not sharp. And when the display window is displayed, the influence on the screen display is small.

The display device may be a mobile phone as shown in the figure, or may be a computer, a television, an intelligent wearable display device, and the like, which is not particularly limited in this embodiment.

The integrated display cover plate provided by the invention can display different colors, so that the display device provided by the invention can show an integrated integral effect, if the display device is a mobile phone, the rear cover of the display device is rose gold, and the integrated display cover plate is also rose gold, so that the display device can be used as an ornament in a screen-saving state, and the problem of poor user experience caused by black display area and salience in the screen-saving state can be solved.

It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (7)

1. An integrated display cover, comprising:
a substrate, a multilayer film structure on the substrate;
the multilayer film structure includes: a plurality of first films and a plurality of second films which are cross-laminated;
wherein the color of the integrated display cover plate is rose red;
the first film is a titanium dioxide film, the second film is a silicon dioxide film, the number of layers of the first film is the same as that of the second film, the thicknesses of the multiple layers of the first film are unequal, and the thicknesses of the multiple layers of the second film are unequal;
the multilayer film structure comprises, in order in a direction away from the substrate:
a silica thin film with a thickness of 400nm to 500 nm;
a titanium dioxide film with the thickness of 50 nm-70 nm;
a silica film having a thickness of 85nm to 105 nm;
a titanium dioxide film with the thickness of 55 nm-75 nm;
a silica film with a thickness of 330nm to 350 nm;
a titanium dioxide film with the thickness of 45 nm-65 nm;
both inclusive.
2. The integrated display cover plate of claim 1, wherein the first film is a niobium pentoxide film or a silicon nitride film and the second film is a silicon dioxide film.
3. The integrated display cover plate of any one of claims 1-2, wherein the substrate is a glass substrate or an acrylic substrate.
4. The integrated display cover plate of claim 3, wherein the substrate is a frosted substrate.
5. The integrated display cover plate of claim 4, wherein the surface of the substrate facing the multilayer film structure is a surface with anti-glare particles.
6. A display device comprising a display device body and a cover plate covering the display device body, wherein the cover plate is the integrated display cover plate according to any one of claims 1 to 5.
7. The display device according to claim 6, wherein the display device is a liquid crystal display device, an organic light emitting diode display device, an LED display device, or an electronic paper.
CN201710464299.XA 2017-06-19 2017-06-19 Display device and integrated display cover plate thereof CN107182175B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN201710464299.XA CN107182175B (en) 2017-06-19 2017-06-19 Display device and integrated display cover plate thereof

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CN107182175B true CN107182175B (en) 2020-01-03

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Publication number Priority date Publication date Assignee Title
CN107766849A (en) * 2017-11-28 2018-03-06 京东方科技集团股份有限公司 A kind of fingerprint recognition display panel and fingerprint recognition display device

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CN101162270A (en) * 2006-10-12 2008-04-16 余章军 Manufacturing technology of colorful display screen glasses lens
CN202363038U (en) * 2011-10-31 2012-08-01 信利光电(汕尾)有限公司 Anti-dazzle surface cover of display screen
US9790126B2 (en) * 2013-09-05 2017-10-17 Apple Inc. Opaque color stack for electronic device
CN103995303B (en) * 2014-05-29 2015-07-22 苏州胜利精密制造科技股份有限公司 Intelligent terminal permeability improvement protection sheet
CN105807968A (en) * 2014-12-29 2016-07-27 南昌欧菲光学技术有限公司 Touch panel with black bezel, cover plate of touch panel and manufacturing method for cover plate

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