CN219512786U

CN219512786U - OLED flexible display screen and vehicle-mounted display device

Info

Publication number: CN219512786U
Application number: CN202320112044.8U
Authority: CN
Inventors: 李林峰; 彭枫; 袁生贵
Original assignee: Haiwei Intelligent Manufacturing Technology Wuhan Co ltd
Current assignee: Haiwei Intelligent Manufacturing Technology Wuhan Co ltd
Priority date: 2023-01-16
Filing date: 2023-01-16
Publication date: 2023-08-11
Anticipated expiration: 2033-01-16

Abstract

The utility model discloses an OLED flexible display screen and a vehicle-mounted display device, wherein the OLED flexible display screen comprises a back plate and a display module, one side of the back plate is provided with a concave cavity, the display module comprises a cover plate, a touch panel, an OLED panel, a back film and a support plate which are sequentially stacked, the display module is installed in the concave cavity, and one side, away from the OLED panel, of the support plate is attached to the back plate. According to the technical scheme, on the premise of ensuring that the display effect of the OLED module is not affected, the effective fixation of the OLED module is met, the black edge size of the cover plate is reduced, the number of structural members is reduced, the extremely narrow and extremely thin appearance requirement of the assembly is met, and the technological sense of cabin interior decoration is improved.

Description

OLED flexible display screen and vehicle-mounted display device

Technical Field

The utility model relates to the technical field of display devices, in particular to an OLED flexible display screen and a vehicle-mounted display device.

Background

Along with the development of an intelligent cabin, the effect of a display screen in the cabin is more and more protruded, the requirement of people on the display effect is also more and more high, and compared with the traditional display screen, the OLED flexible display screen has the advantages of higher color gamut, higher contrast and faster response time, and the display technology is gradually introduced into vehicle-mounted display; meanwhile, in order to promote the technological sense of cabin interior trim, narrower black edges and lighter and thinner assembly demands are provided for the display screen.

Because the back of the OLED flexible display screen is generally copper foil, no hard support exists, uneven stress can affect display, and the limitation of the structure of the OLED flexible display screen leads to the fact that the OLED flexible display screen can not meet the requirement of an extremely narrow frame under the vehicle-mounted condition.

Disclosure of Invention

The utility model mainly aims to provide an OLED flexible display screen, which aims to solve the problem that the OLED flexible display screen cannot bear force and cannot meet the requirement of an extremely narrow frame under a vehicle-mounted condition.

In order to achieve the above object, the OLED flexible display screen according to the present utility model includes:

a backboard, one side of which is provided with a concave cavity; the method comprises the steps of,

the display module assembly comprises a cover plate, a touch panel, an OLED panel, a back film and a support plate which are sequentially stacked, wherein the display module assembly is installed in the concave cavity, and the support plate is away from one side of the OLED panel and is attached to the back plate.

Optionally, the support plate comprises an aluminum plate.

Optionally, a heat conducting pad is arranged between the supporting plate and the back plate.

Optionally, the thermal pad is distributed along the circumference of the back plate.

Optionally, a first adhesive layer is arranged between the cover plate and the touch panel;

a second bonding layer is arranged between the touch panel and the OLED panel;

a third bonding layer is arranged between the back film and the supporting plate;

a fourth bonding layer is arranged between the supporting plate and the backboard.

Optionally, the first adhesive layer comprises an optical adhesive; and/or the number of the groups of groups,

the second adhesive layer comprises optical cement; and/or the number of the groups of groups,

the third bonding layer comprises heat-conducting glue; and/or the number of the groups of groups,

the fourth adhesive layer includes a structural adhesive.

Optionally, the OLED panel includes:

the flexible substrate is arranged between the OLED panel and the back film;

the OLED device layer is arranged on one side of the flexible substrate, which is away from the back film; the method comprises the steps of,

and the packaging layer is arranged on one side of the OLED device layer, which is away from the back film, and is used for packaging the OLED device layer.

Optionally, the OLED panel further includes an encapsulation protection layer, where the encapsulation protection layer is disposed on a side of the encapsulation layer facing away from the back film.

Optionally, the display module further includes a color filter layer, where the color filter layer is disposed between the encapsulation layer and the encapsulation protection layer or between the encapsulation protection layer and the touch panel.

The utility model also provides a vehicle-mounted display device which comprises the OLED flexible display screen.

According to the technical scheme, the display module is arranged in the concave cavity, the supporting plate is arranged on one side, away from the OLED panel, of the back film, the supporting plate is arranged on the back plate, all the side, away from the OLED panel, of the supporting plate can be used for being attached and fixed with the back plate, the fixing area of the display module is increased, the supporting and fixing effects of the display module can be guaranteed through the supporting plate on the premise that the display effect of the OLED panel is not affected, the size of the cover plate does not need to be increased, the cover plate is larger than the OLED panel and is used for being fixedly connected with the back plate, the OLED flexible display screen meets the requirement of a narrow frame in appearance under vehicle-mounted conditions, and the OLED flexible display screen meets the requirement of extremely narrow and extremely thin appearance.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is an exploded view of one embodiment of an OLED flexible display screen according to the present utility model;

FIG. 2 is a schematic diagram of the OLED flexible display in FIG. 1;

fig. 3 is an exploded view of the display module of fig. 1.

Reference numerals illustrate:

the achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

In view of this, the present utility model proposes an OLED flexible display 100, and fig. 1 to 3 are an embodiment of the OLED flexible display 100 provided by the present utility model, which satisfies effective fixation of an OLED module while reducing the size of a black edge of a cover plate and the number of structural members on the premise of not affecting the display effect of the OLED module, thereby meeting the requirements of extremely narrow and extremely thin appearance of the assembly, and improving the technological sense of cabin interior decoration, and the OLED flexible display 100 will be described with reference to specific drawings.

Referring to fig. 1 to 3, the OLED flexible display 100 includes a back plate 1 and a display module 2, one side of the back plate 1 has a cavity 11, the display module 2 includes a cover plate 21, a touch panel 22, an OLED panel 23, a back film 24 and a support plate 25 which are sequentially stacked, the display module 2 is installed in the cavity 11, and one side of the support plate 25 away from the OLED panel 23 is attached to the back plate 1.

According to the technical scheme of the utility model, the display module 2 is arranged in the concave cavity 11, and the support plate 25 is arranged on one side of the back film 24, which is away from the OLED panel 23, and is arranged on the back plate 1 through the support plate 25, and because all the side of the support plate 25, which is away from the OLED panel 23, can be used for being attached and fixed with the back plate 1, the fixing area of the display module 2 is increased, the supporting and fixing effects of the display module 2 can be ensured through the support plate 25 on the premise of not influencing the display effect of the OLED panel 23, the size of the cover plate 21 is not required to be increased, so that the cover plate 21 is larger than the OLED panel 23 for being fixedly connected with the back plate 1, the OLED flexible display screen 100 meets the requirement of a narrow frame in appearance under the vehicle-mounted condition, and the OLED flexible display screen 100 meets the requirement of extremely narrow and extremely thin appearance.

In order to improve the heat dissipation of the display module 2, in this embodiment, the support plate 25 includes an aluminum plate 251, and the aluminum plate 251 directly contacts the back film 24 to be used as a heat dissipation plate to contact the back plate 1, so that the heat of the OLED panel 23 can be dissipated in time, and the heat dissipation requirement is satisfied.

Various arrangements for improving the heat dissipation effect are provided, and the heat conduction pad 3 is specifically not limited, and in this embodiment, a heat conduction pad is disposed between the support plate 25 and the back plate 1. The heat of the display module 2 is conducted to the backboard 1 through the heat conducting pad 3, and heat is dissipated timely. Further, the specific shape and number of the heat-conducting pads 3 are not limited, in an embodiment, the heat-conducting pads 3 may be set to be the same as the area of the supporting plate 25, so that the contact area with the supporting plate 25 is increased to improve the heat dissipation effect, but because the area of the heat-conducting pads 3 is larger, the gap between the supporting plate 25 and the back plate 1 is too large, the fixing effect of the back plate 1 is affected when the supporting plate 25 is attached to the back plate 1 is affected, in this embodiment, the heat-conducting pads 3 are distributed in a plurality along the circumferential direction of the back plate 1, the area of the heat-conducting pads 3 is smaller, the effect of circumferential uniform heat conduction is ensured, meanwhile, the occupied space is smaller, the contact area of the supporting plate 25 and the back plate 1 is not affected, and the fixing effect is good.

In order to ensure the connection between the components of the display module 2, a first adhesive layer 26 is disposed between the cover plate 21 and the touch panel 22, a second adhesive layer 27 is disposed between the touch panel 22 and the OLED panel 23, a third adhesive layer 28 is disposed between the back film 24 and the support plate 25, and a fourth adhesive layer 4 is disposed between the support plate 25 and the back plate 1 in order to fix the display module 2 to the back plate 1. The first adhesive layer 26, the second adhesive layer 27, the third adhesive layer 28 and the fourth adhesive layer 4 satisfying the fixing effect are not particularly limited, and in order to avoid that the first adhesive layer 26 and the second adhesive layer 27 affect the display effect of the display module 2, in this embodiment, the first adhesive layer 26 includes an optical adhesive, and the second adhesive layer 27 includes an optical adhesive, specifically, the optical adhesive includes OCA (Optically Clear Adhesive) optical adhesive. In order to enhance the heat transfer effect of the OLED panel 23 to the support plate 25, the third adhesive layer 28 includes a heat conductive adhesive; in order to improve the fixing and supporting effect of the support plate 25 mounted on the back plate 1, the fourth adhesive layer 4 includes structural adhesive. The specific arrangement of the first adhesive layer 26, the second adhesive layer 27, the third adhesive layer 28, and the fourth adhesive layer 4 may be alternatively present, or may be present at the same time, and is not particularly limited.

The OLED panel 23 specifically includes a flexible substrate, an OLED device layer and a packaging layer, where the flexible substrate is disposed between the OLED panel 23 and the back film 24, the OLED device layer is disposed on a side of the flexible substrate facing away from the back film 24, and the packaging layer is disposed on a side of the OLED device layer facing away from the back film 24, and encapsulates the OLED device layer. And the OLED device layer is encapsulated through the encapsulation layer so as to isolate water and oxygen, and the failure of the OLED device caused by the water and oxygen entering the OLED device layer is avoided.

In order to effectively protect the encapsulation layer and the OLED device layer, the OLED panel 23 further includes an encapsulation protection layer, where the encapsulation protection layer is disposed on a side of the encapsulation layer away from the back film 24, so that the thickness of the OLED flexible display screen 100 is reduced, and a thin screen effect is achieved, and the encapsulation protection layer can be made of an elastic modulus material, so that the encapsulation protection layer is ensured to protect the encapsulation layer and the OLED device layer, and meanwhile, the thickness of the encapsulation protection layer can be set thinner, and specific setting can be achieved according to actual requirements. Further, the display module 2 further includes a color filter layer, and the color filter layer is disposed between the encapsulation layer and the encapsulation protection layer or between the encapsulation protection layer and the touch panel 22, so as to improve the display effect.

The utility model also provides a vehicle-mounted display device, which comprises the OLED flexible display screen 100, wherein the specific structure of the OLED flexible display screen 100 refers to the above embodiments, and because the vehicle-mounted display device adopts all the technical schemes of all the embodiments, the vehicle-mounted display device at least has all the beneficial effects brought by the technical schemes of the embodiments, and the description is omitted herein.

In the present utility model, the specific structure of the in-vehicle display device is not limited.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims

1. An OLED flexible display screen, comprising:

2. The OLED flexible display screen of claim 1, wherein the support plate comprises an aluminum plate.

3. The OLED flexible display screen of claim 1, wherein a thermal pad is disposed between the support plate and the back plate.

4. The OLED flexible display screen of claim 3, wherein the thermal pad is circumferentially distributed along the back plane.

5. The OLED flexible display screen of claim 1, wherein a first adhesive layer is disposed between the cover plate and the touch panel;

a second bonding layer is arranged between the touch panel and the OLED panel;

6. The OLED flexible display screen of claim 5, wherein the first adhesive layer comprises an optical adhesive; and/or the number of the groups of groups,

the fourth adhesive layer includes a structural adhesive.

7. The OLED flexible display screen of claim 1, wherein the OLED panel comprises:

the flexible substrate is arranged between the OLED panel and the back film;

8. The OLED flexible display screen of claim 7, wherein the OLED panel further comprises an encapsulation protective layer disposed on a side of the encapsulation layer facing away from the back film.

9. The OLED flexible display screen of claim 8, wherein the display module further comprises a color filter layer disposed between the encapsulation layer and the encapsulation protective layer or between the encapsulation protective layer and the touch panel.

10. An in-vehicle display device comprising an OLED flexible display screen as claimed in any one of claims 1 to 9.