CN111029375A

CN111029375A - Display screen and display device

Info

Publication number: CN111029375A
Application number: CN201911166029.6A
Authority: CN
Inventors: 彭祥
Original assignee: Yungu Guan Technology Co Ltd
Current assignee: Yungu Guan Technology Co Ltd
Priority date: 2019-11-25
Filing date: 2019-11-25
Publication date: 2020-04-17
Anticipated expiration: 2039-11-25
Also published as: CN111029375B

Abstract

The application relates to a display screen and a display device, the display screen comprises a substrate, a luminous layer and a polaroid. The light emitting layer is arranged on one side of the substrate. The light emitting layer is provided with openings. The polaroid is arranged on one side of the light-emitting layer far away from the substrate in a laminated mode. The polaroid comprises a polarizing part and a shielding part, wherein the polarizing part is stacked on one side, far away from the substrate, of the light emitting layer, the shielding part is bent and extended towards the inside of the hole, and the polarizing part and the shielding part are integrally formed. The shielding portion is disposed around an inner wall of the opening. Therefore, the shielding part can block air and moisture from invading the luminous layer, thereby improving the reliability of the display screen.

Description

Display screen and display device

Technical Field

The application relates to the field of display, in particular to a display screen and a display device.

Background

With the development of display industry, the organic light emitting diode display screen has been increasingly emphasized with its advantages of fast response speed, high contrast, wide color gamut, etc. In order to improve the screen occupation ratio, holes are usually drilled in the display area of the screen, and the quality of the display screen is inevitably affected by the holes drilled in the display area, so that the screen body is easy to lose effectiveness due to water and oxygen invasion.

Disclosure of Invention

Therefore, it is necessary to provide a display screen and a display device for solving the problem that the screen body fails due to the fact that the display area is perforated so that water and oxygen are easy to invade.

A display screen, the display screen comprising:

a substrate;

the light-emitting layer is arranged on one side of the substrate and provided with an opening;

the polaroid, including the range upon range of set up in the luminescent layer is kept away from the polarisation portion of base plate one side, and towards the shielding part that the trompil internal bending extends, the polarisation portion with shielding part integrated into one piece, just the shielding part centers on the inner wall setting of trompil.

In one embodiment, a light shielding layer is arranged on one side of the shielding part away from the inner wall of the opening.

In one embodiment, the touch panel further comprises a touch layer disposed on a side of the light emitting layer away from the substrate, the polarizer is disposed on a side of the touch layer away from the light emitting layer, the opening penetrates through the touch layer and the light emitting layer, and the shielding portion extends from the touch layer to the light emitting layer.

In one embodiment, a first protruding structure surrounding the opening is disposed on one side of the touch layer close to the opening.

In one embodiment, the touch panel further comprises an adhesive layer, the adhesive layer is arranged between the light emitting layer and the touch layer, and the opening penetrates through the touch layer, the light emitting layer and the adhesive layer.

In one embodiment, a side of the adhesive layer adjacent to the opening is provided with a second raised structure surrounding the opening.

In one embodiment, the surface of the second raised structure is a frosted surface.

In one embodiment, the polarizer comprises at least one layer of cellulose triacetate film, and the shielding part is formed by the cellulose triacetate film.

In one embodiment, the light-emitting device further comprises a cover plate, the cover plate covers one side surface of the light-deflecting part far away from the substrate, and the cover plate and the edge of the opening are sealed through a sealant.

A display device comprises the display screen.

The embodiment of the application provides display screen and display device, the luminescent layer with the polaroid sets gradually one side of base plate, just the luminescent layer is provided with the trompil. The shielding part and the polaroid are integrally formed. The shielding part faces the opening, bends and extends in the opening and surrounds the inner wall of the opening, so that the shielding part can block air and moisture from invading the luminous layer, and the reliability of the display screen can be improved.

Drawings

FIG. 1 is a cross-sectional view of a display screen provided by an embodiment of the present application;

FIG. 2 is a cross-sectional view of a display screen provided in accordance with another embodiment of the present application;

fig. 3 is a cross-sectional view of a display screen according to another embodiment of the present application.

Description of reference numerals:

display screen 10

Substrate 110

Light emitting layer 120

Opening 130

Polarizer 140

Shielding part 142

Light-shielding layer 150

Touch layer 160

First bump structure 162

Adhesive layer 170

Second bump structure 172

Cover plate 180

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more clearly understood, the following detailed description of the display screen and the display device is provided by embodiments and with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings). In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be considered as limiting the present application.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1, an embodiment of the present application provides a display screen 10. The display screen 10 includes a substrate 110, a light-emitting layer 120, and a polarizer 140, where the polarizer 140 includes a polarizing portion and a blocking portion 142. The light emitting layer 120 is disposed on one side of the substrate 110. The luminescent layer 120 is provided with openings 130. The polarizer 140 is stacked on the side of the light-emitting layer 120 away from the substrate 110. The light deflecting portion and the shielding portion 142 are integrally formed. The shielding portion 142 extends and bends toward the inside of the opening 130, and the shielding portion 142 is disposed around the inner wall of the opening 130.

In this embodiment, the substrate 110 may be a rigid material, such as glass. The substrate 110 may also be a flexible material. The substrate 110 may be bent when it is a flexible material. When the substrate 110 is a flexible material, the material may be polyimide, polyethylene naphthalate, polyethylene terephthalate, polyarylate, polycarbonate, polyethersulfone, polyetherimide, or the like. The light emitting layer 120 may be disposed on a surface of the substrate 110. The light emitting layer 120 may include a thin film transistor driving layer and a pixel layer. The thin film transistor driving layer may include a thin film transistor array. The pixel units in the pixel layer can be driven to display through the thin film transistor array. The light emitting material in the pixel unit may be an organic light emitting material. The organic light-emitting materials can be driven to emit light of different colors by the thin film transistor.

The opening 130 may be disposed at various positions of the display screen 10 as desired. The opening 130 may be provided with a camera, a gravity sensor, or an infrared sensor. The opening 130 may also extend through the entire display screen 10, and when the display screen 10 is used in a vehicle, some control buttons such as voice and video buttons in the vehicle may pass through the opening 130. The display screen 10 may also be fixed to a certain portion of the vehicle through the opening 130, for example, the opening 130 may be sleeved on a column-shaped protrusion on the inner wall of the vehicle compartment, so that the display screen 10 is fixed. The shape of the opening 130 may be set as desired, and in one embodiment, the opening 130 may be circular, rectangular, oval, polygonal, etc.

The polarizer may control the polarization direction of a specific light beam emitted from the light emitting layer 120. Thereby bringing good visual effect to people. The polarizing part is a part of the polarizer 140, and the polarizer 140 may include a polyvinyl alcohol (PVA) film, a cellulose Triacetate (TAC) film, a protective film, a release film, a pressure sensitive adhesive film, and the like. Among them, the polyvinyl alcohol film determines the polarization performance and transmittance of the polarizer 140, and is also a main part affecting the color tone and optical durability of the polarizer 140.

The shielding portion 142 and the polarization portion are integrally formed, that is, the polarization portion and the shielding portion 142 may be made of the same material. The shielding portion 142 may be understood as an extension of the polarizer. The cellulose triacetate film may be disposed on both sides of the polyvinyl alcohol film to insulate water and air, for protecting the polarizing layer. Therefore, the polarizer 140 has a function of insulating water and air. The polarizer 140 may be folded into the opening 130 after extending to the opening 130, and the folded portion may form the shielding portion 142. The shielding portion 142 may be disposed against an inner wall of the opening 130. In one embodiment, the shielding portion 142 may be adhered to the inner wall of the opening 130 by an adhesive. Therefore, the moisture and air in the opening 130 can be prevented from entering the light emitting layer 120 by the shielding portion 142, and the light emitting layer 120 can be prevented from being damaged.

It is understood that the structures of the shielding portion 142 and the light deflecting portion on the surface of the light emitting layer 120 may be the same or different. The number of layers of the shielding portion 142 and the number of layers of the polarizer may be different. In one embodiment, the number of layers of the shielding part 142 may be less than that of the polarizing part. Space within the opening 130 may be saved.

In the display screen 10 provided in the embodiment of the present application, the light-emitting layer 120 and the polarization portion are sequentially disposed on one side of the substrate 110, and the light-emitting layer 120 is provided with the opening 130. The light deflecting portion and the shielding portion 142 are integrally formed. The shielding portion 142 is disposed around the inner wall of the opening 130, so that the shielding portion 142 can block air and moisture from invading the light emitting layer 120, thereby improving the reliability of the display screen 10.

Referring to fig. 2, in an embodiment, a light shielding layer 150 is disposed on a side of the shielding portion 142 away from the inner wall of the opening 130. The light emitted from the light emitting layer 120 can be prevented from leaking out of the opening 130 by the light shielding layer 150. The light-shielding layer 150 may be black or gray. The light shielding layer 150 may be a paint coated on the inner wall of the opening 130, or may be a film attached to the inner wall of the opening 130. In one embodiment, the light shielding layer 150 may be ink. In one embodiment, a light-shielding element may be disposed on the top of the opening to prevent light leakage from the opening 130. When the opening is covered by the cover plate 180, ink may also be applied to a side of the cover plate 180 close to the opening 130 to prevent light leakage, and when ink is applied to the top of the cover plate 180, the substrate 110 may be a transparent substrate. The camera provided in the opening 130 can capture images from the direction of the transparent substrate.

In one embodiment, the display screen 10 further includes a touch layer 160. The touch layer 160 is disposed on a side of the light emitting layer 120 away from the substrate 110. The polarizer 140 is disposed on a side of the touch layer 160 away from the light-emitting layer 120. The opening 130 penetrates through the touch layer 160 and the light emitting layer 120. The shielding portion 142 extends from the touch layer 160 to the light emitting layer 120. The touch layer 160 may serve as an input function module of the display screen 10. The touch layer 160 may be a capacitive touch layer. The touch layer 160 may be touched to control the display screen 10. The opening 130 is disposed through the touch layer 160 and the light emitting layer 120. Therefore, the shielding portion 142 also serves to protect the edge of the touch layer 160.

Referring to fig. 3, in an embodiment, a first protrusion structure 162 surrounding the opening 130 is disposed on a side of the touch layer 160 close to the opening 130. The first protrusion 162 may be an annular protrusion surrounding the inner wall of the opening 130. A portion of the blocking portion is attached to the surface of the first protrusion structure 162. Therefore, the surface area of the shielding portion 142 is relatively increased under the support of the first protrusion structure 162, and accordingly, the difficulty of the moisture and air entering the light emitting layer 120 is increased, thereby further increasing the reliability of the display screen 10. In one embodiment, the first protrusion structure 162 may be integrally formed with the touch layer 160. The first protrusion structures 162 may also be independent structures adhered to the edges of the touch layer 160. In one embodiment, the first protrusion structure 162 may be an organic glue adhered to the light emitting layer 120 at the edge of the opening 130. The organic glue may form the first protrusion structure 162 after being cured.

In one embodiment, the display screen 10 further includes an adhesive layer 170. The adhesive layer 170 is disposed between the light emitting layer 120 and the touch layer 160. The opening 130 penetrates through the touch layer 160, the light emitting layer 120 and the adhesive layer 170. The adhesive layer 170 may be an optical adhesive or an organic resin. The adhesive layer 170 may connect the light emitting layer 120 and the touch layer 160. The thickness of the edge of the adhesive layer 170 close to the opening 130 may be slightly greater than the thickness of the adhesive layer 170 at other positions, so that the contact area between the adhesive layer 170 and the shielding portion 142 may be increased at the edge of the adhesive layer 170 close to the opening 130. So that the shielding part 142 can be fixed by the adhesive layer 170.

In one embodiment, a side of the adhesive layer 170 adjacent to the opening 130 is provided with a second protrusion structure 172 surrounding the opening 130. The second protrusion 172 may be a ring-shaped structure disposed around the inner wall of the opening 130. The second protrusion structure 172 can change the shape of the inner wall of the opening 130, so that the shielding portion 142 protrudes along with the protrusion of the inner wall of the opening 130. The protruding shielding part 142 increases the area of the shielding part 142, and also extends the path of moisture and air, thereby reducing the possibility of water and air entering the light emitting layer 120. In one embodiment, the degree of protrusion of the second protrusion structure 172 may be greater than the degree of protrusion of the first protrusion structure 162. Therefore, the first protruding structures 162 and the second protruding structures 172 can make the inner wall of the opening 130 in a non-uniform wave shape, so that the path of water and air invading the light-emitting layer 120 is more tortuous and correspondingly longer, and the resistance of water and oxygen invading the light-emitting layer 120 is further increased.

In one embodiment, the surface of the second raised structure 172 is a frosted surface. Since the second raised structures 172 are made of glue, the second raised structures 172 may polish the surface of the second raised structures 172 when the glue is not completely cured, so as to form the frosted surface. The frosted surface can increase the surface area of the second raised structure 172, thereby increasing the contact area between the second raised structure 172 and the shielding portion 142. Further, the frosted surface increases the static friction between the surface of the second projection structure 172 and the shielding portion 142, so that the adhesion of the shielding portion 142 to the second projection structure 172 can be improved.

The frosted surface may be continuous and wavy protrusions and depressions, and when the shielding portion 142 is adhered to the inner wall of the opening 130, a small gap is left between the shielding portion 142 and the protrusions and depressions. When moisture intrudes into the frosted surface, it is retained in the voids, so that the voids can prevent water and oxygen from further intruding into the light emitting layer 120.

In one embodiment, the polarizer 140 includes at least one layer of cellulose triacetate film. The shielding portion 142 is formed of the cellulose triacetate film. The cellulose triacetate film has a function of blocking moisture and air. In the shielding portion 142, other layers of the polarizer 140 are peeled off, and only one layer of the cellulose triacetate film is left. The cellulose triacetate film can not only play a role in blocking moisture and oxygen from permeating, but also reduce the thickness of the shielding part 142, so that the resistance of bending the shielding part 142 towards the opening 130 can be reduced. The shielding portion 142 is made of the cellulose triacetate film, and the volume occupied by the shielding portion 142 can be reduced, so that the space in the opening 130 is increased.

In one embodiment, the display screen 10 further includes a cover plate 180. The cover plate 180 covers a surface of the side of the polarizer away from the substrate 110. The cover plate 180 is sealed with the edge of the opening 130 by a sealant. Moisture and air can be prevented from entering the light emitting layer 120 through the gap between the cover plate 180 and the opening 130. The cover sheet 180 may function to seal and protect the touch layer 160. The sealant can be an optical organic adhesive. The cover plate 180 may seal the opening 130. The sealant may increase adhesion between the change 180 and the opening edge of the opening 130, and simultaneously has a sealing function to prevent moisture and oxygen from entering the opening 130 through a gap between the cover plate 180 and the touch layer 160.

The embodiment of the application also provides a display device. The display device comprises the display screen 10 provided by the embodiment. Display device can be electronic equipment such as panel computer, mobile terminal, wisdom bracelet. The display device may also be used as a display device in a vehicle.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present patent. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A display screen, wherein the display screen comprises:

a substrate (110);

a light emitting layer (120) disposed on one side of the substrate (110), the light emitting layer (120) having an opening (130);

the polarizer (140) comprises a light deflecting part and a shielding part (142), wherein the light deflecting part is arranged on one side, far away from the substrate (110), of the light emitting layer in a laminated mode, the shielding part (142) extends towards the inside of the opening (130) in a bent mode, the light deflecting part and the shielding part (142) are integrally formed, and the shielding part (142) is arranged around the inner wall of the opening (130).

2. A display screen according to claim 1, characterised in that a side of the shield portion (142) remote from the inner wall of the aperture (130) is provided with a light-shielding layer (150).

3. The display screen of claim 1, further comprising a touch layer (160), wherein the touch layer (160) is disposed on a side of the light emitting layer (120) away from the substrate (110), the polarizer is disposed on a side of the touch layer (160) away from the light emitting layer (120), the opening (130) penetrates through the touch layer (160) and the light emitting layer (120), and the shielding portion (142) extends from the touch layer (160) to the light emitting layer (120).

4. The display screen of claim 3, wherein a side of the touch layer (160) near the opening (130) is provided with a first raised structure (162) surrounding the opening (130).

5. The display screen of claim 3, further comprising an adhesive layer (170), wherein the adhesive layer (170) is disposed between the light-emitting layer (120) and the touch layer (160), and wherein the opening (130) penetrates through the touch layer (160), the light-emitting layer (120), and the adhesive layer (170).

6. A display screen according to claim 5, characterised in that the side of the adhesive layer (170) adjacent the aperture (130) is provided with a second raised formation (172) surrounding the aperture (130).

7. A display screen according to claim 6, characterised in that the surface of the second raised structure (172) is a frosted surface.

8. A display screen according to claim 1, characterised in that the polarizer (140) comprises at least one layer of cellulose triacetate film, the shade (142) being constituted by the cellulose triacetate film.

9. A display screen according to claim 1, further comprising a cover plate (180), wherein the cover plate (180) covers a side surface of the light deflecting portion (140) away from the substrate (110), and the cover plate (180) is sealed with an edge of the opening (130) by a sealant.

10. A display device, characterized in that it comprises a display screen (10) according to any one of claims 1-9.