CN212934007U

CN212934007U - Folding display screen structure

Info

Publication number: CN212934007U
Application number: CN202021880056.8U
Authority: CN
Inventors: 江建志; 赖耀升; 周晧煜
Original assignee: Enrique Zhejiang Display Technology Co Ltd
Current assignee: Anhui Fansheng Display Technology Co ltd
Priority date: 2020-09-01
Filing date: 2020-09-01
Publication date: 2021-04-09
Anticipated expiration: 2030-09-01

Abstract

The utility model discloses a folding display screen structure, press the frame including flexible OLED panel, protection apron and screen, the protection apron is located flexible OLED panel top, the top of frame is pressed to the screen inwards extends and compresses tightly at the protection apron surface, the edge of protection apron is compressed tightly and is subsided downwards and form and compress tightly the district, the utility model discloses make the edge of protection apron compressed tightly and subsides downwards, give the screen and press the frame inwards to extend the space, press the frame top surface and flush with the PET upper surface or be a little higher than for screen edge operation is in the same direction as smooth.

Description

Folding display screen structure

Technical Field

The utility model belongs to electronic product display screen field, more specifically the folding display screen structure that says so relates to.

Background

In the first quarter of 2020, samsung released a GalaxyZFlip folding screen mobile phone, which is the first global folding screen mobile phone that adopts ultrathin glass as a protective cover plate. In 7 months, samsung released galaxy zflip version 5G again, which not only increased the support frequency of 5G, but also improved the structure of the folding part, and still used ultra-thin glass (UTG) as the protective cover plate, but still retained the edge strip on the front edge of the protective cover plate.

The purpose of this blank holder setting is in order to cover the edge of protection apron for the protection apron is difficult for droing or is difficult for being peeled off by the user. However, in the using process, the edge pressing strip has a certain thickness and is completely protruded out of the surface of the screen, so that the using feeling is seriously influenced, and when certain operations are carried out, particularly gesture operations which need to slide from the outside of the edge of the screen to the inside of the screen are often unsuccessful, so that a new technical scheme is provided by the application to solve the problem.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a make protective cover plate's edge subsides downwards, gives the screen and presses the inside extension space of frame, presses frame top surface and PET upper surface to flush or be a little higher than for screen edge operation is in the same direction as smooth.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a folding display screen structure, includes that flexible OLED panel, protection apron and screen press the frame, the protection apron is located flexible OLED panel top, the top of screen press the frame inwards extends and compresses tightly at the protection apron surface, the edge of protection apron is compressed tightly and is subsided downwards and form and compress tightly the district.

Further the protection apron includes ultra-thin glass and first PET, first PET is located ultra-thin glass top and the edge extends to the ultra-thin glass outside, compress tightly the district and be located ultra-thin glass's edge to first PET edge between.

Further be provided with first optical cement between first PET and the ultra-thin glass, first PET is in the same place through first optical cement laminating with ultra-thin glass.

Further the lower surface of the first PET is provided with a BM pattern frame, and the orthographic projection of the BM pattern frame covers the edge of the compression area and the ultra-thin glass.

And an explosion-proof membrane is arranged below the ultrathin glass.

And a second PET is arranged below the explosion-proof membrane.

And a second optical adhesive is arranged between the explosion-proof film and the second PET, and the explosion-proof film and the second PET are adhered together through the second optical adhesive.

And a third optical cement is arranged between the protection cover plate and the flexible OLED panel, and the protection cover plate and the flexible OLED panel are adhered together through the third optical cement.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the top surface of the screen pressing frame is flush with or slightly higher than the upper surface of a display area (non-BM coverage area) PET (polyethylene terephthalate), so that the edge operation of the screen is smooth;

2. the edge of the ultrathin glass is hidden under the BM pattern frame by reducing the size of the ultrathin glass, so that the appearance and the practical performance are not influenced, and the side edge of the ultrathin glass can be effectively protected;

3. the lower surface of the ultrathin glass can be coated or printed with an explosion-proof film, so that the ultrathin glass is better protected.

Drawings

Fig. 1 is a schematic structural view of a first embodiment of the foldable display screen of the present invention;

fig. 2 is a schematic structural view of a second embodiment of the foldable display screen of the present invention;

fig. 3 is a schematic structural view of a third embodiment of the foldable display screen of the present invention;

fig. 4 is a schematic structural diagram of a protection cover plate according to a first embodiment of the present invention.

Reference numerals: 1. a flexible OLED panel; 21. a first PET; 22. a first optical cement; 23. ultra-thin glass; 24. an explosion-proof membrane; 25. a third optical cement; 26. BM pattern frame; 27. a second PET; 28. a second optical cement; 3. a compression zone; 4. and pressing the screen.

Detailed Description

The embodiment of the foldable display screen structure of the present invention is further described with reference to fig. 1 and 4.

In the description of the present invention, it should be noted that, for the orientation words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and the positional relationship are indicated based on the orientation or the positional relationship shown in the drawings, and the description is only for convenience of describing the present invention and simplifying the description, but not for indicating or implying that the device or the element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present invention.

Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and "a plurality" or "a plurality" in the description of the invention means two or more unless a specific definition is explicitly provided.

The first embodiment is as follows:

the utility model provides a folding display screen structure, includes flexible OLED panel 1, protection apron and screen pressure frame 4, the protection apron is located flexible OLED panel 1 top, the top of screen pressure frame 4 inwards extends and compresses tightly at the protection shield surface, the edge of protection apron is compressed tightly and is subsided downwards and form and compress tightly district 3, dotted line frame part in figure 4.

As shown in fig. 1, the flexible OLED panel 1 is located below, the protective cover plate is located above the flexible OLED panel 1, the screen pressing frame 4 is located on the side of the folded display screen, and the top of the screen pressing frame extends inward (in the middle of the display screen), that is, the top of the screen pressing frame 4 extends in the transverse direction, the edge of the protective cover plate is pressed and settled downward to form a pressing area 3, but the screen pressing frame 4 cannot be pressed right above the ultra-thin glass 23, that is, the pressing area 3 is used for accommodating the screen pressing frame 4, so that the top surface of the screen pressing frame 4 is flush with or slightly higher than the upper surface of the middle part of the protective cover plate.

When the foldable mobile phone is used, the screen pressing frame 4 is divided into two parts according to the folding shape, and the screen pressing frame 4 is not arranged in the folding axis area (using the hinge part).

The flexible OLED panel 1 in this embodiment may adopt a structure in the prior art, and includes a TFT, an OLED, a TFE, a touch layer, a circular polarizer, and the like.

In this embodiment, a third optical adhesive 25 is preferably disposed between the protective cover plate and the flexible OLED panel 1, the protective cover plate and the flexible OLED panel 1 are attached together through the third optical adhesive 25, the third optical adhesive 25 is preferably coated or printed on the bottom surface of the protective cover plate or the top surface of the flexible OLED panel 1, and the thickness of the third optical adhesive 25 is 5 to 60 micrometers.

The protective cover plate preferred in this embodiment includes the ultra-thin glass 23 and the first PET21, the first PET21 is located above the ultra-thin glass 23 and extends from the edge to the outside of the ultra-thin glass 23, and the compression area 3 is located between the edge of the ultra-thin glass 23 and the edge of the first PET21, that is, the compression area 3 is formed by the portion of the first PET21 beyond the edge of the ultra-thin glass 23.

The preferred first PET21 has a thickness of 20-150 microns and the ultra-thin glass 23 has a thickness of 20-150 microns.

As shown in fig. 1, the ultra-thin glass 23 is smaller than the first PET21, and then the edge of the first PET21 is pressed by the screen press frame 4 without the support of the ultra-thin glass 23 to be settled down.

In the embodiment, the first optical cement 22 is preferably disposed between the first PET21 and the ultra-thin glass 23, and the first PET21 and the ultra-thin glass 23 are bonded together through the first optical cement 22.

The first optical cement 22 is not only arranged on the upper surface of the ultra-thin glass 23, but also arranged on the side surface of the ultra-thin glass 23, that is, the first optical cement 22 is fully distributed under the first PET21, and in this embodiment, the optical cement on the side surface of the ultra-thin glass 23 is attached to the third optical cement 25.

The preferred first optical adhesive 22 of this embodiment is coated or printed on the side surface and the top surface of the ultra-thin glass 23, wherein the thickness of the first optical adhesive 22 corresponding to the position between the ultra-thin glass 23 and the first PET21 is 5-60 micrometers.

The lower surface of the first PET21 of the preferred embodiment is provided with a BM pattern frame 26, and an orthographic projection (vertical projection in fig. 1) of the BM pattern frame 26 covers the edge of the pressing area 3 and the ultra-thin glass 23.

The BM pattern frame 26 in the present embodiment is formed by coating or printing a pattern ink on the lower surface of the first PET21, as shown in fig. 1, in the present embodiment, the BM pattern frame 26 extends from the edge of the first PET21 to the middle, the BM pattern frame 26 covers at least part of the edge of the ultra-thin glass 23, of course, the outer side of the BM pattern frame 26 may not extend to the edge of the first PET21, but at least extends to the part of the screen pressing frame 4 located at the pressing area 3, that is, the screen pressing frame 4 and the BM pattern frame 26 overlap in a forward projection manner, and the part of the BM pattern frame 26 located at the pressing area 3 sinks downward together with the first PET21, the BM pattern frame 26 can prevent light leakage, and the area of the protective cover plate not covered by the BM pattern frame 26 forms a display area for displaying the image of the electronic product.

In the present embodiment, an explosion-proof membrane 24 is preferably disposed below the ultra-thin glass 23, and the explosion-proof membrane 24 is preferably formed by coating or printing explosion-proof ink on the lower portion of the ultra-thin glass 23, so that the explosion-proof membrane 24 can better protect the ultra-thin glass 23.

Example two:

as shown in fig. 2, in the present embodiment, a second PET27 is disposed below the explosion-proof film 24, the remaining technical features are the same as those of the first embodiment, in the present embodiment, the size of the second PET27 is substantially the same as that of the OLED panel, the second PET27 is used to further protect the ultra-thin glass 23, wherein preferably, a second optical glue 28 is disposed between the explosion-proof film 24 and the second PET27, the explosion-proof film 24 and the second PET27 are attached together by the second optical glue 28, the second optical glue 28 is coated or printed below the second PET27 or above the flexible OLED panel 1, and the thickness of the second optical glue 28 is 5-60 μm.

Example three:

as shown in fig. 3, in the present embodiment, a second PET27 is disposed below the explosion-proof film 24, and other technical features are the same as those of the first embodiment, in the present embodiment, the size of the second PET27 may be the same as that of the ultra-thin glass 23, or slightly larger than that of the ultra-thin glass 23, but slightly smaller than that of the OLED panel; the thickness of the pressing region 3 can be reduced to thereby thicken the thickness of the extended portion of the screen frame 4, and the strength of the screen frame 4 can be enhanced.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a folding display screen structure which characterized in that: including flexible OLED panel, protection apron and screen pressure frame, the protection apron is located flexible OLED panel top, the top of screen pressure frame inwards extends and compresses tightly at the protection apron surface, the edge of protection apron is compressed tightly and is subsided downwards and form and compress tightly the district.

2. The foldable display screen structure of claim 1, wherein: the protective cover plate comprises ultra-thin glass and first PET, the first PET is located above the ultra-thin glass, the edge of the first PET extends to the outside of the ultra-thin glass, and the compression area is located between the edge of the ultra-thin glass and the edge of the first PET.

3. The foldable display screen structure of claim 2, wherein: first optical cement is arranged between the first PET and the ultrathin glass, and the first PET and the ultrathin glass are bonded together through the first optical cement.

4. A foldable display screen structure, as recited in claim 3, further comprising: the lower surface of the first PET is provided with a BM pattern frame, and the orthographic projection of the BM pattern frame covers the edge of the compression area and the edge of the ultrathin glass.

5. The foldable display screen structure of claim 4, wherein: and an explosion-proof membrane is arranged below the ultrathin glass.

6. The foldable display screen structure of claim 5, wherein: and a second PET is arranged below the explosion-proof membrane.

7. The foldable display screen structure of claim 6, wherein: and a second optical adhesive is arranged between the explosion-proof film and the second PET, and the explosion-proof film and the second PET are adhered together through the second optical adhesive.

8. The foldable display screen structure of claim 1, wherein: and a third optical cement is arranged between the protection cover plate and the flexible OLED panel, and the protection cover plate and the flexible OLED panel are adhered together through the third optical cement.