CN113497201B

CN113497201B - Cover plate, display panel, display screen and terminal

Info

Publication number: CN113497201B
Application number: CN202010273019.9A
Authority: CN
Inventors: 陈鹏名; 梁吉德
Original assignee: Honor Device Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2020-04-08
Filing date: 2020-04-08
Publication date: 2022-06-21
Anticipated expiration: 2040-04-08
Also published as: CN113497201A

Abstract

The application relates to the technical field of display screens, in particular to a cover plate, a display panel, a display screen and a terminal. The cover plate is applied to a display screen, the display screen comprises a screen module provided with a first light hole, specifically, the cover plate comprises a polaroid, the polaroid is used for being attached to the surface of the screen module and is provided with a second light hole, and the first light hole and the second light hole are correspondingly arranged; the cover plate body is bonded on the surface of the polaroid through an optical adhesive layer; the UV light shielding layer is positioned between the cover plate body and the optical adhesive layer; and the projection along the thickness direction of the cover plate is used for covering the projection of the screen module in the second light-transmitting hole by the projection of the UV light shielding layer. The utility model provides a apron, display panel, display screen and terminal are in the optical cement curing process, can avoid the organic material of UV light shines on encapsulated layer and the display layer.

Description

Cover plate, display panel, display screen and terminal

Technical Field

The application relates to the technical field of display screens, in particular to a cover plate, a display panel, a display screen and a terminal.

Background

The electronic terminals such as mobile phones and tablet computers with high screen ratio have larger display area, and better experience is provided for users. As shown in fig. 1, at present, mainstream manufacturers are all researching and developing technologies for improving the screen occupation ratio of electronic terminals, and in order to realize higher screen occupation ratio, the conventional mode of installing a camera module by opening a hole on a display screen is adopted. However, the functional layer materials corresponding to the position of the opening on the display screen, such as the resin support pillars and the luminescent material, are interfered by the ultraviolet rays, which may cause the display screen to show poor appearance.

Disclosure of Invention

The application provides a apron, display panel, display screen and terminal, and the structural design at this apron, display panel, display screen and terminal is reasonable, in the optical cement curing process, can avoid the organic material on UV (Ultraviolet) light shines encapsulated layer and the display layer.

This application first aspect provides an apron is applied to the display screen, the display screen is including the screen module that is provided with first light trap, its characterized in that includes:

the polaroid is used for being attached to and covered on the surface of the screen module and is provided with a second light hole, and the first light hole and the second light hole are arranged correspondingly;

the cover plate body is bonded on the surface of the polaroid through an optical adhesive layer;

the UV light shielding layer is positioned between the cover plate body and the optical adhesive layer;

and the projection along the thickness direction of the cover plate is used for covering the projection of the screen module in the second light-transmitting hole.

In this application, along the thickness direction H projection of apron, the projection that the screen module was located the second light trap can be sheltered from to the UV light, consequently, carry out the solidification operation of optical cement layer when utilizing UV light, so that apron body and polaroid bond when as an organic whole each other, because the functional characteristic on UV light shielding layer, UV light can't pierce through UV light shielding layer, consequently, each functional layer of having avoided screen module 1 receives the influence of UV light, prevent the organic matter of each functional layer, like the resin support column around the encapsulated layer hole region, the characteristic of the organic light emitting material around the display layer hole region changes, the demonstration of guarantee display screen is normal.

Further, the UV light shielding layer is of an annular structure;

the inner diameter of the UV light shielding layer is smaller than or equal to the aperture of the first light transmission hole;

the outer diameter of the UV light shielding layer is larger than or equal to the aperture of the second light transmitting hole.

In this application, in order to ensure that the UV light can not shine and expose the encapsulation layer outside the polaroid and the organic matter in the display layer, specifically, the inside and outside diameter of UV light shielding layer and the aperture of first light trap and second light trap should satisfy: the inner diameter of the UV light shielding layer is smaller than or equal to the aperture of the first light transmission hole, the outer diameter of the UV light shielding layer is larger than or equal to the aperture of the second light transmission hole, and by means of the design structure, the entity part of the UV light shielding layer can be guaranteed to completely cover the packaging layer exposed outside the polaroid and the part of the display layer, so that the UV light used for curing the optical adhesive layer cannot cause the denaturation of the resin support column on the packaging layer and the luminescent material on the display layer.

Further, the inner diameter of the UV light blocking layer is equal to the aperture of the first light transmitting hole.

In this application, keep unanimous through the internal diameter of UV light shielding layer and the aperture of first light trap, can avoid UV light shielding layer to influence the daylighting of leading camera, and then ensure the shooting effect of leading camera, can also avoid the no display area increase of display screen to also make the outward appearance of display screen have more the aesthetic feeling when having improved the screen and having occupied the ratio.

Further, the maximum width of the UV light blocking layer is d, and d =

；

A is the minimum distance between the UV light source and the edge of the first light-transmitting hole along the movement direction of the display screen on the curing table;

b is the distance from the UV light source to the polarizer;

c is the thickness of the polarizer;

e is the aperture of the first light hole.

In this application, this kind of structural design can ensure that UV light shielding layer both can prevent that UV light from shining the organic material on encapsulated layer and the display layer, simultaneously, can also ensure that apron body and polaroid can bond together through optics glue film layer.

Further, the UV light shielding layer is arranged on the lower surface of the cover plate body.

In this application, UV light shielding layer set up in the lower surface of apron body for UV light shielding layer hides in the inside of display screen, avoids UV light shielding layer and external object contact, leads to UV light shielding layer by scraping, wearing and tearing etc. the influence to shelter from the effect, simultaneously, also makes unable outside observation from the apron UV light shielding layer, has improved the aesthetic property of display screen.

Further, the UV light shielding layer is a single layer or multiple layers.

In this application, in the production and processing process, can set up the concrete number of piles of UV light shielding layer according to actual demand, do not do specifically to restrict here, as long as satisfy the effect of sheltering from of UV light can.

Furthermore, the UV light shielding layer is made of an opaque material.

In this application, the UV light that light-tight material made shelters from the layer and can ensure effectual hindrance UV light's penetration, avoids UV light to shine the organic material on encapsulated layer and the display layer.

Further, the UV light shielding layer is made of a black material.

In this application, black UV light shielding layer can avoid selecting for use metal material to lead to the display screen to take place to reflect light and influence the problem that user experience feels, simultaneously, because polaroid and UV light shielding layer are black, and then reach the whole outward appearance of display screen unanimously, even there is tolerance in polaroid and the laminating of screen module and can not see both eccentric phenomena in first light trap and second light trap, also better hidden first light trap and second light trap, consequently, the outward appearance of display screen has been improved.

Further, the UV light shielding layer is made of ink.

In the application, the printing ink is simple in process operation, low in cost and high in efficiency, and the practicability of the cover plate and the reasonability of design are further guaranteed.

Furthermore, the first light hole and the second light hole are round holes, and the aperture of the second light hole is larger than or equal to that of the first light hole.

In this application, first light trap and second light trap are the round hole, can improve the holistic vision aesthetic property of display screen, increase the shooting region of leading camera simultaneously, and wherein, the aperture of second light trap is more than or equal to the aperture of first light trap, and this kind of project organization has avoided the no display area of display screen to increase.

Furthermore, the optical adhesive layer is OCA optical adhesive.

In this application, the optical Adhesive layer may be an OCA (optical Clear Adhesive) optical Adhesive or other UV type organic optical Adhesive.

The second aspect of the present application provides a display panel comprising the above-mentioned cover plate.

In the present application, the advantages of the display screen are the same as those of the cover plate in any of the above embodiments, which have already been explicitly described above and are not described herein again.

The third aspect of the application provides a display panel, which comprises a screen module, a polarizer and a cover plate body, wherein the screen module, the polarizer and the cover plate body are sequentially attached;

the screen module comprises a display assembly and a touch layer positioned above the display assembly;

and the touch layer is provided with a UV light shielding layer which covers the part of the screen module, which exposes the polaroid.

In this application, through the mode that is provided with UV light shielding layer on the touch-control layer, each functional layer of having avoided the screen module equally receives the influence of UV light, prevents that the organic matter of each functional layer, like the characteristic of the luminous material around resin support column, the display layer hole region around the packaging layer hole region changes, ensures that the demonstration of display screen is normal.

Furthermore, the UV light shielding layer and the touch layer are evaporated into an integral structure.

In the application, the evaporation mode can reduce the process difficulty.

The fourth aspect of the present application provides a display screen, including the display panel described above.

In the present application, the advantages of the display panel are the same as those of the display panel in any of the above embodiments, which have already been explicitly described above and are not described herein again.

The fifth aspect of the application provides a terminal, including the shell and with the display screen that the shell is connected, the display screen be the aforesaid the display screen.

In the present application, the advantages of the terminal are the same as those of the display screen in any of the above embodiments, which have already been explicitly described above and are not described herein again.

Drawings

FIG. 1 is a schematic diagram of a prior art display screen;

FIG. 2 is a schematic diagram of a connection structure between a cover plate and a screen module according to an embodiment of the present invention;

FIG. 3a is a schematic view of a display panel just before being illuminated by a UV light source according to an embodiment of the present invention;

FIG. 3b is a schematic view of the display screen of FIG. 3a after a period of motion while illuminated by a UV light source;

FIG. 4 is a schematic view of FIG. 3 a;

fig. 5 is a schematic structural diagram of a display screen according to an embodiment of the present invention;

fig. 6 is another schematic structural diagram of a display screen according to an embodiment of the present invention.

Reference numerals are as follows:

1-a screen module;

11-a first light-transmitting aperture;

12-a display component;

13-a touch layer;

2-a polarizer;

21-a second light hole;

3-cover plate body;

4-UV light shielding layer;

5-optical glue layer;

6-a metal ring;

7-a UV light source;

1 a-a screen module;

11 a-a glass substrate;

12 a-a transistor layer;

13 a-a touch layer;

14 a-a display layer;

15 a-an encapsulation layer;

2 a-a polarizer;

3 a-a cover plate body;

5 a-optical glue layer.

Detailed Description

The terminology used in the description of the embodiments section of the present application is for the purpose of describing particular embodiments of the present application only and is not intended to be limiting of the present application.

With the development of electronic terminals such as mobile phones, tablet computers and intelligent wearable devices, people not only require the electronic terminals to have good performance, but also put forward higher requirements on the appearance of the electronic terminals. Taking a mobile phone as an example, none of the mobile phones from a keyboard key mobile phone to a touch screen mobile phone to a large-sized mobile phone and the most popular ' full screen ' mobile phone at present is considered to be the user's feeling. Particularly, the full-screen mobile phone is more and more popular with users due to good touch and appearance.

As shown in fig. 1, the display screen includes screen module 1a and the apron of laminating on screen module 1a, and wherein, along the thickness direction H of display screen, screen module 1a includes in proper order: a glass substrate as a carrier, a Transistor layer (e.g., LTPS TFT, Low Temperature Poly-Silicon, Thin Film Transistor), a display layer for image display (e.g., OLED, organic light-Emitting Diode, organic electroluminescent display, organic light-Emitting semiconductor), an Encapsulation layer (ENCAP) for sealing the Transistor layer and the display layer, and a touch layer 13a (touch) for functional operation; the cover plate includes: a Polarizer 2a (POL), an Ultraviolet (UV) type optical adhesive layer 5a for adhesion, and a Cover plate body 3a (e.g., CG, Cover Glass, Glass Cover plate) for protecting the screen module 1 a. In order to improve the screen occupation ratio of the electronic terminal, holes are dug at the same positions of different layers of the display screen in the processing process, namely, holes need to be dug at the same positions of the transistor layer, the display layer, the packaging layer, the touch layer 13a and the polarizer 2a, and then an optical device (such as a front camera) is placed below the dug positions so as to ensure normal shooting of the front camera.

However, in the assembling process of the display screen, the cover plate body 3a is attached above the polarizer 2a, and the cover plate body 3a and the polarizer 2a are adhered into a whole through the optical adhesive layer 5a, wherein the optical adhesive layer 5 is in a liquid state, and in the adhering process, the optical adhesive layer 5a needs to be irradiated by UV light, so that the optical adhesive layer 5a is changed from a liquid to a solid to realize adhesion.

In the process of UV light irradiation, UV light at the position shielded by the polarizer 2a cannot penetrate through other layers of the display screen, but due to the reason of the attachment alignment tolerance of the polarizer 2a, the hole outline of the hole digging area of the polarizer 2a cannot be completely aligned with the hole outline of other layers of the screen, so that a resin support column around the hole area of the packaging layer and organic luminescent materials around the hole area of the display layer are exposed outside the polarizer 2a, the UV light is directly irradiated on the resin support column and the luminescent materials, the characteristics of the organic materials such as the resin support column and the luminescent materials are changed, and the display fault of the display screen is further caused.

To solve the above problem, the present embodiment provides a Cover plate applied to a display screen, please continue to refer to fig. 2, the display screen includes a screen module 1 having a first light hole 11, the Cover plate includes a Polarizer 2 (POL), a Cover plate body 3 (e.g., CG, Cover Glass, Glass Cover plate), and a UV light shielding layer 4.

Specifically, the polarizer 2 is attached to the surface of the screen module 1 and provided with a second light hole 21, and the first light hole 11 and the second light hole 21 are correspondingly arranged to ensure that the optical device (such as a front camera) can collect images. The cover plate body 3 is bonded on the surface of the polaroid 2 through the optical adhesive layer 5 layers, and the UV light shielding layer 4 is positioned between the cover plate body 3 and the optical adhesive layer 5 layers. When carrying out the display screen equipment, will bond apron body 3 as an organic whole and polaroid 2 and laminate in the top of screen module 1, the equipment is accomplished the back, along the thickness direction H projection of apron, the projection that screen module 1 is located second light trap 21 is sheltered from to UV light, carry out 5 layers of solidification operations on the optical cement layer when utilizing UV light, so that apron body 3 and polaroid 2 bond as an organic whole each other, because UV light shelters from the functional characteristic of layer 4, UV light can't pierce through UV light and shelter from layer 4, therefore, each functional layer of having avoided screen module 1 receives the influence of UV light, prevent the organic matter of each functional layer, like the resin support column around the packaging layer hole region, the characteristic of the organic light emitting material around the display layer hole region changes, the demonstration of guarantee display screen is normal.

In this embodiment, the optical Adhesive layer 5 may be an OCA (optical Clear Adhesive) optical Adhesive or other UV type organic optical Adhesive.

It should be noted that, for convenience of description, the optical device is specifically described as a front camera in the following embodiments, and when the optical device is another component, the description is similar to this.

Wherein, as shown in fig. 2, the first light hole 11 is a through hole, and the second light hole 21 can be a blind hole or a through hole, so that the front camera placed below the hole position can have sufficient light to improve the photographing and displaying effect, and the second light hole 21 is also a through hole.

In this embodiment, the UV light blocking layer 4 is an annular structure and may be a rectangular ring, a diamond ring, an oval ring, a gourd-shaped ring, or other structures, wherein the hole areas of the UV light blocking layer 4, the first light hole 11, and the second light hole 21 correspond to each other, thereby ensuring normal lighting of the front camera. For improving the holistic vision aesthetic property of display screen, ensure simultaneously that leading camera can obtain more light, UV light shielding layer 4 is the ring.

Similarly, the first light hole 11 and the second light hole 21 may have various shapes, such as a rectangle, a diamond, an oval, a gourd-shaped, and other various structures. In this embodiment, for improving the holistic vision aesthetic property of display screen, increase the shooting region of leading camera simultaneously, UV light shielding layer 4, first light trap 11 and second light trap 21 three's profile shape keeps unanimous, and first light trap 11 and second light trap 21 are the circular port promptly, and UV light shielding layer 4 is the round annular structure.

To ensure that the UV light cannot irradiate the organic substances in the encapsulation layer and the display layer exposed outside the polarizer 2, specifically, as shown in fig. 2, in the present embodiment, the inner and outer diameters of the UV light shielding layer 4 and the apertures of the first light transmission hole 11 and the second light transmission hole 21 should satisfy: the inner diameter of the UV light shielding layer 4 is smaller than or equal to the aperture of the first light transmission hole 11, the outer diameter of the UV light shielding layer 4 is larger than or equal to the aperture of the second light transmission hole 21, and by means of the design structure, the entity part of the UV light shielding layer 4 can be guaranteed to completely cover the part of the packaging layer and the part of the display layer which are exposed outside the polaroid 2, so that the UV light used for curing the optical adhesive layer 5 cannot cause the denaturation of the resin support column on the packaging layer and the luminescent material on the display layer.

Further, in this embodiment, the inner diameter of the UV light shielding layer 4 is equal to the aperture of the first light transmitting hole 11, and the inner diameter of the UV light shielding layer 4 is consistent with the aperture of the first light transmitting hole 11, so that the UV light shielding layer 4 can be prevented from affecting the lighting of the front camera, and the shooting effect of the front camera is ensured. In addition, for the design structure, the inner diameter of the UV light shielding layer 4 is designed to be larger than the aperture of the first light transmitting hole 11, the non-display area of the display screen can be prevented from being enlarged, and therefore the appearance of the display screen is more attractive while the screen occupation ratio is improved.

To ensure that the UV light shielding layer 4 can not only prevent the UV light from irradiating the organic materials on the encapsulation layer and the display layer, but also ensure that the cover plate body 3 and the polarizer 2 can be bonded together through the optical adhesive layer 5, as shown in fig. 3a and 4, in this embodiment, the maximum width of the UV light shielding layer 4 is d, specifically, d =

Wherein, a is the minimum distance between the UV light source 7 and the edge of the first light hole 11 along the moving direction R of the display screen on the curing table, b is the distance from the UV light source 7 to the polarizer 2, c is the thickness of the polarizer 2, and e is the aperture of the first light hole 11.

The maximum width d of the UV-light shielding layer 4 is deduced as follows:

when the cover plate body 3 and the polarizer 2 are bonded, the display screen needs to be placed on a curing table, the curing table can drive the display screen to move towards the irradiation area of the UV light source 7, when the display screen just enters the irradiation area of the UV light source 7, the UV light of the UV light source 7 irradiates the packaging layer and is reflected onto the cover plate body 3 through the packaging layer, and the light path is shown by an arrow in fig. 3 a; further, as shown in fig. 3b, after the display screen moves on the optical adhesive layer 5 curing table for a period of time, the position where the UV light from the UV light source 7 can be reflected onto the cover plate body 3 also changes, as can be seen from a comparison between fig. 3a and fig. 3b, when the display screen just enters the optical adhesive layer 5 curing table, the position where the UV light is reflected onto the cover plate body 3 is the farthest position where the UV light can reach the cover plate body 3.

According to geometric principles, as shown in fig. 4, one can obtain:

it should be noted here that the thicknesses of the optical adhesive layer 5 and the touch layer 13 are much smaller than the thickness of the polarizer 2, so when the maximum width of the UV light shielding layer 4 is calculated as d, the thicknesses of the optical adhesive layer 5 and the touch layer 13 can be ignored.

As shown in fig. 2, in the present embodiment, regarding the design of the sizes of the first light-transmitting hole 11 and the second light-transmitting hole 21, the aperture of the second light-transmitting hole 21 is greater than or equal to the aperture of the first light-transmitting hole 11, and this design structure also avoids the non-display area of the display screen from increasing.

Further, for improving the shooting visual angle of the front camera and better guaranteeing the shooting effect, the aperture of the second light hole 21 is larger than that of the first light hole 11. Simultaneously, this kind of design, at the in-process of apron with the laminating of screen module 1, can also absorb more laminating tolerances to, also better avoid the region outside the second light trap 21 to cover first light trap 11, influence the daylighting of leading camera.

In this embodiment, the UV light shielding layer 4 is a single layer or multiple layers, and specifically, in the production process, the number of specific layers of the UV light shielding layer 4 may be set according to actual requirements, which is not specifically limited herein as long as the shielding effect of the UV light is satisfied.

In this embodiment, to ensure that the UV light shielding layer 4 can effectively block the penetration of the UV light, specifically, the UV light shielding layer 4 is made of an opaque material, wherein the opaque material may be a metal material, or may also be made of a black or approximately black organic or inorganic material.

Further, in the present embodiment, the UV light shielding layer 4 is made of black material, specifically, the black material may be carbon black, graphite, or Fe₃O₄Black color of equalThe black material such as metallic oxide, black UV light shielding layer 4 can avoid selecting for use metal material to lead to the display screen to take place to reflect light and influence the problem that user experience feels, and simultaneously, because polaroid 2 and UV light shielding layer 4 are black, and then reach the whole outward appearance of display screen unanimously, even polaroid 2 and the laminating of screen module 1 have tolerance and can not see first light trap 11 and the eccentric phenomenon in second light trap 21 both, first light trap 11 and second light trap 21 have also been hidden better, therefore, the outward appearance of display screen has been improved.

UV light shielding layer 4 can be for having the independent structure spare of regular shape, for example can be the graphite annulus, when the screen equipment, places UV light shielding layer 4 between apron body 3 and optical cement layer 5 layers, when utilizing UV light to carry out optical cement layer 5 curing operation, UV light shielding layer 4 parcel is in the optical cement layer 5 layers after the solidification. For reducing the technology degree of difficulty, improve machining efficiency, as shown in fig. 2, in this embodiment, UV light shielding layer 4 sets up in the lower surface of apron body 3, and this kind of structural design, convenient and easy definite UV light shielding layer 4's assembly area avoids the process of 5 solidifications of optical cement layer to cause the removal of UV light shielding layer 4, and then can ensure that UV light shielding layer 4 can cover the part that screen module 1 is located second light trap 21, has improved and has sheltered from the effect.

In addition, UV light shielding layer 4 sets up in the lower surface of apron body 3, also makes UV light shielding layer 4 hide in the inside of display screen, avoids UV light shielding layer 4 and external object contact, leads to UV light shielding layer 4 by scraping, wearing and tearing etc. the influence to shelter from the effect, simultaneously, also makes the unable outside from the apron observe UV light shielding layer 4, has improved the aesthetic property of display screen.

Specifically, in this embodiment, UV light shielding layer 4 can be printing ink, through the lower surface printing ink at apron body 3 to the realization prevents that UV light from shining encapsulation layer and the display layer that exposes outside polaroid 2, and, the technological operation of printing ink is simple, with low costs and efficient, has further ensured the practicality of this apron and the rationality of design.

The present embodiment provides a display panel, which includes a screen module 1 and a cover plate in any of the above embodiments, specifically, the cover plate is attached to the screen module 1.

The advantages of the display panel are the same as those of the cover plate in any of the above embodiments, which have already been clearly described above and are not described herein again.

To solve the problem of preventing UV light from irradiating the organic substances in the encapsulation layer and the display layer exposed outside the polarizer 2, as shown in fig. 5, another display panel is provided in this embodiment, and the display panel includes a screen module 1, a polarizer 2 and a cover plate body 3 that are sequentially attached to each other.

Specifically, the screen module 1 includes a display module 12, a touch layer 13 located above the display module 12, and a UV light shielding layer 4, wherein the UV light shielding layer 4 and the touch layer 13 are disposed on the same layer and located inside the touch layer 13, and the UV light shielding layer 4 covers a portion of the screen module 1 exposing the polarizer 2.

In this embodiment, by providing the UV light blocking layer 4 on the inner side of the touch layer 13, it is also avoided that each functional layer of the screen module 1 is affected by UV light, and organic matters of each functional layer, such as resin support pillars around the hole area of the encapsulation layer and luminescent materials around the hole area of the display layer, are prevented from changing, thereby ensuring that the display of the display screen is normal.

Wherein, the UV light shielding layer 4 is also made of black material, specifically, the black material can be carbon black, graphite or Fe₃O₄The black material such as the black metal oxide, for example, the UV light shielding layer 4 may be ink, and the ink is applied to the inner side of the touch layer 13 by means of coating. As shown in fig. 5, in order to reduce the process difficulty, in this embodiment, before the touch layer 13 is subjected to the touch trace evaporation process or after the touch trace evaporation process, organic matter such as black resin and the like may be evaporated in the hole region of the first light-transmitting hole 11 of the touch layer 13 to form the UV light blocking layer 4, and the heights of the touch layer 13 and the UV light blocking layer 4 are equal.

As shown in fig. 6, in this embodiment, a metal ring 6 may be directly disposed on the inner side of the touch layer 13 close to the second light hole 21, where the metal ring 6 is used to cover a portion of the screen module 1 exposing the polarizer 2, and the upper surface of the metal ring 6 is blackened by ink, graphite, and other materials, and this design mode may also prevent UV light from irradiating the package layer and the organic matter in the display layer exposed outside the polarizer 2, and meanwhile, the blackened processing mode also ensures that the overall appearance of the display screen is consistent, and avoids the eccentricity of the first light hole 11 and the second light hole 21.

The present embodiment provides a display screen, which includes the display panel described in any one of the above embodiments.

The display panel has the same advantages as the display panel in any of the above embodiments, and the description thereof is omitted here for brevity.

Specifically, this embodiment provides a terminal, and this terminal includes a housing and a display screen connected with the housing, and the display screen is the display screen in any one of the above embodiments. Wherein, this terminal can be smart mobile phone, panel computer, wearing equipment etc..

In this embodiment, a terminal includes, but is not limited to, a device configured to receive/transmit communication signals via a wireline connection, such as via a Public Switched Telephone Network (PSTN), a Digital Subscriber Line (DSL), a Digital cable, a direct cable connection, and/or via a Wireless interface to a cellular Network, a Wireless Local Area Network (WLAN), a Digital television Network of a DVB-H Network, a satellite Network, an AM-FM broadcast transmitter, and/or another terminal.

Among them, a terminal provided to pass through a wireless interface may be referred to as a "wireless communication terminal", "wireless terminal", or "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; a personal communication system terminal that can combine a cellular radiotelephone with data processing, facsimile and data communication capabilities; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. The utility model provides a cover plate, is applied to the display screen, the display screen is including the screen module that is provided with first light trap, a serial communication port, include:

the polaroid is used for being attached to and covered on the surface of the screen module and is provided with a second light hole, the first light hole and the second light hole are arranged correspondingly, and the aperture of the second light hole is larger than or equal to that of the first light hole;

the UV light shielding layer is used for shielding UV light from irradiating the screen module, the UV light is used for curing the optical adhesive layer, and the UV light shielding layer is positioned between the cover plate body and the optical adhesive layer;

and the projection along the thickness direction of the cover plate covers the projection of the UV light shielding layer, wherein the screen module is positioned in the second light-transmitting hole.

2. The cover sheet according to claim 1, wherein the UV light blocking layer is a ring-shaped structure;

3. The cover sheet according to claim 2, wherein the inner diameter of the UV light blocking layer is equal to the aperture of the first light transmitting hole.

4. The cover sheet according to claim 3, wherein the UV light blocking layer has a maximum width d, and d =

；

b is the distance from the UV light source to the polarizer;

c is the thickness of the polarizer;

e is the aperture of the first light hole.

5. The cover sheet of claim 1, wherein the UV light blocking layer is disposed on a lower surface of the cover sheet body.

6. The cover sheet according to claim 1, wherein the UV light blocking layer is a single layer or a plurality of layers.

7. The cover sheet according to claim 1, wherein the UV light blocking layer is made of an opaque material.

8. The cover sheet according to claim 7, wherein the UV light blocking layer is made of a black material.

9. The cover sheet according to claim 8, wherein the UV light blocking layer is made of ink.

10. The cover plate as claimed in claim 1, wherein the first and second light-transmitting holes are circular holes.

11. The cover sheet of claim 1, wherein the optical adhesive layer is an OCA optical adhesive.

12. A display panel is characterized by comprising a screen module and a polaroid which are sequentially attached, wherein the screen module is provided with a first light hole, the polaroid is provided with a second light hole, the first light hole and the second light hole are correspondingly arranged, and the aperture of the second light hole is larger than or equal to that of the first light hole;

the screen module comprises a display assembly, a touch layer and a UV light shielding layer, wherein the touch layer and the UV light shielding layer are positioned above the display assembly;

the UV light shielding layer is used for shielding UV light from irradiating the screen module, the UV light is used for curing optical cement, the UV light shielding layer and the touch layer are arranged on the same layer and are located on the inner side, close to the second light transmission hole, of the touch layer, and the UV light shielding layer covers the part, exposed out of the polaroid, of the screen module.

13. The display panel according to claim 12, wherein the UV light blocking layer and the touch layer are evaporated to form an integral structure.

14. A display screen characterized by comprising the display panel of claim 12 or 13.

15. A display screen, characterized in that it comprises a cover plate according to any one of claims 1-11 and a display panel according to any one of claims 12-13.

16. A terminal, characterized in that it comprises a housing and a display connected to said housing, said display being the display of claim 14 or 15.