CN210325755U

CN210325755U - Flexible organic light emitting diode display screen and electronic equipment

Info

Publication number: CN210325755U
Application number: CN201921257604.9U
Authority: CN
Inventors: 熊芳芳
Original assignee: Jiangxi Lianchuang Electronic Co Ltd
Current assignee: Jiangxi Lianchuang Electronic Co Ltd
Priority date: 2019-08-05
Filing date: 2019-08-05
Publication date: 2020-04-14
Anticipated expiration: 2029-08-05

Abstract

The utility model provides a flexible organic light emitting diode display screen, attached under the apron, a serial communication port, flexible organic light emitting diode display screen includes according to preface range upon range of polaroid, the touch-control layer, the encapsulation film, organic light emitting diode, thin film transistor layer and basic protective layer, basic protective layer adopts PET or PI plastics, basic protective layer is located both ends and is fracture form formation midblock and side district, the bending region of buckling downwards is formed at the fracture position, the lower surface on thin film transistor layer has the insulating oil reservoir of thermosetting in the bending region coating. The utility model provides a flexible organic light emitting diode display screen has reduced the total thickness in the district of buckling, has promoted the crooked reliability of screen side.

Description

Flexible organic light emitting diode display screen and electronic equipment

Technical Field

The utility model relates to a display screen technical field, in particular to flexible organic light emitting diode display screen and electronic equipment.

Background

The mobile phone, as the most rapid intelligent product of new era development, integrates a plurality of advantages, wherein the display screen technology is also developed towards a direction that the screen ratio is larger, so as to bring better user experience.

In order to make the display area of the conventional display screen larger, the two side edges of the conventional display screen are bent in an organic light emitting diode screen bending mode, and the edges of the conventional display screen form a curved screen, so that the display size of the screen on the two side edges is enlarged.

However, in the prior art, since the bent portion includes the touch layer, the packaging film, the organic light emitting diode, the thin film transistor layer and the basic protective layer, the thickness of the bent portion is relatively large, wherein the thickness of the basic protective layer accounts for 40% of the thickness of the total screen, and after bending, the bent portion has large bending rebound stress, is easy to warp, and has a reliability risk.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a flexible organic light emitting diode display screen to it is big to solve prior art bending rebound stress, the easy problem of upwarping.

The utility model provides a flexible organic light emitting diode display screen, attached under the apron, flexible organic light emitting diode display screen includes according to preface range upon range of polaroid, touch-control layer, encapsulation film, organic light emitting diode, thin film transistor layer and basic protective layer, basic protective layer adopts PET or PI plastics, basic protective layer is located both ends and is fracture form formation midblock and side district, forms the bending region of buckling downwards at the fracture position, the lower surface on thin film transistor layer the bending region coating has the insulating oil reservoir of thermosetting.

Further, the thermosetting insulating oil layer is coated to a thickness of 5 μm.

Further, the material of the packaging film is any one of PI and PET.

Further, the thickness of the thin film transistor layer is 50 μm.

Further, the polaroid includes polarizing layer, scattering layer and atomizing layer.

Further, the atomizing layer is a layer of glue, and light-transmitting particles are uniformly distributed in the glue.

Further, the light-transmitting particles are PMMA particles.

Further, the scattering layer includes refractive layers and barrier layers alternately stacked.

The utility model provides a flexible organic light emitting diode display screen, its polaroid, the touch-control layer, the packaging film, organic light emitting diode, thin film transistor layer and basic protective layer stack gradually under the apron, wherein basic protective layer adopts the PET plastics, higher antifriction nature and dimensional stability and electrical insulation nature have, a stable in structure for protecting organic light emitting diode and thin film transistor layer, and, basic protective layer is located both ends and is fracture form formation middle zone and side district, there is not basic protective layer in the district of buckling, but the district coating has the insulating oil reservoir of thermosetting in the district of buckling, the insulating oil reservoir of thermosetting compares the PET plastics, possible adding of its thickness is thin, thereby it is big effectively to avoid buckling rebound stress, the problem of easy upwarp.

The utility model also provides an electronic equipment, be equipped with above-mentioned flexible organic light emitting diode display screen on the electronic equipment, reduce the thickness in district of bending, it is big to avoid the rebound stress of buckling, the problem of easy upwarp.

Drawings

Fig. 1 is a schematic structural diagram of a flexible oled display according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of the light-shielding sheet of FIG. 1;

fig. 3 is a schematic structural diagram of the scattering layer in fig. 2.

Description of the main elements

The following detailed description of the invention will be further described in conjunction with the above-identified drawings.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Several embodiments of the invention are given in the accompanying drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to fig. 3, in order to show a partial structure of a flexible organic light emitting diode display screen 10 according to an embodiment of the present invention, the flexible organic light emitting diode 10 is disposed under a cover plate 11, and includes a polarizer 20, a touch layer 30, a packaging film 40, an organic light emitting diode 50, a thin film transistor layer 60, and a base protection layer 70, which are stacked in one step.

Specifically, the base passivation layer 70 is broken at a position near the side edge, so that the base passivation layer 70 is divided into two side edge regions 71 and a middle region 72, the broken position can be bent downward to form the bending region 12, and the area of the tft layer 60 located in the bending region 12, which is not covered by the base passivation layer 70, is coated with the thermosetting insulating oil layer 13.

The utility model provides a flexible organic light emitting diode display screen 10 compares the screen of buckling in the past, and its basic protective layer 70 is cracked syllogic, including two side districts 71 and a middle zone 72, the fracture position is used for buckling the screen for crooked position thickness is compared the thickness that the screen was buckled to the conventionality and has been reduced the thickness of a basic protective layer 70. However, the thickness of the base protective layer 70 is typically about 40% of the total thickness of the folded screen, with the base protective layer removed and the total thickness reduced by approximately half. The problem of edge tilting caused by bending the side edge is obviously reduced.

And, the inner side of the bending region 13 is coated with a thermosetting insulating oil layer 13, and the thermosetting insulating oil layer 13 is coated to a thickness of 5 μm so as to protect the entire structure of the thin film transistor layer 60 while not excessively interfering with the bending property thereof. The thermosetting insulating oil layer 13 is formed by mixing a thickening agent, polyvinyl chloride, phthalate and a stabilizing agent, can be effectively attached to the thin film transistor layer 60, and has excellent flexibility and antistatic capability.

It can be understood that, because the basic protection layer 70 does not influence the bending property of the flexible oled display screen 10, the utility model discloses a basic protection layer 70's thickness sets up to 50 μm, and its material is PET or PI material to play better abrasion-resistant frictional property and dimensional stability and electrical insulation nature.

Further, the effect of encapsulation film 40 is to ensure the leakproofness, the utility model discloses an encapsulation film 40 adopts the material of film can be PI membrane or PET membrane, has good light transmissivity and sealing performance to there is low-cost advantage in addition.

In addition, in order to improve the light-shielding and anti-glare properties of the polarizer, the polarizer 20 includes a polarizing layer 21, a scattering layer 22, and an atomizing layer 23.

Wherein the scattering layer 22 comprises a refractive layer 221 and a barrier layer 222 alternately stacked, and the scattering layer 22 is TiO₂The material of the barrier layer 222 is SiO₂The material is used for reducing the reflection of the polarizer 20 to reduce the reflection of light when the light source passes through the plurality of alternately arranged refraction layers 221 and barrier layers 222 and the light reflection effect is weakened when the barrier layers 222 enter the scattering layers each timeAnd a dazzling effect.

The atomized layer 23 is a layer of glue with uniformly distributed light-transmitting particles 231. The layer is sized to have a thickness in the range of 5-10 μm to avoid increasing the thickness of the polarizer 20. The light-transmitting particles 231 are PMMA (organic glass) particles, and the PMMA particles 231 reduce the transmittance of light by the additional haze layer 22, thereby achieving the purpose of optimizing the light-shielding property.

The utility model also provides an use the electronic equipment of above-mentioned flexible organic light emitting diode display screen, use the electronic equipment of this flexible organic light emitting diode display screen, its assembly is reliable and stable, and display effect is good, can effectually shelter from light and prevent dazzling.

The utility model provides a flexible organic light emitting diode display screen 10, the thickness attenuation of its bending zone 12, the reliability of buckling obtains promoting to its atomizing layer 23 of polaroid 20 that sets up and scattering layer 22 can effectual promotion opacity and prevent dazzling effect.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a flexible organic light emitting diode display screen, attached under the apron, its characterized in that, flexible organic light emitting diode display screen is including according to preface range upon range of polaroid, touch-control layer, encapsulation film, organic light emitting diode, thin film transistor layer and basic protective layer, the basic protective layer adopts PET or PI plastics, the basic protective layer is located both ends and is fracture form formation intermediate zone and side district, forms the bending region of buckling downwards at the fracture position, the lower surface on thin film transistor layer the bending region coating has the insulating oil reservoir of thermosetting.

2. The flexible organic light emitting diode display panel of claim 1, wherein the thermosetting insulating oil layer is coated to a thickness of 5 μm.

3. The flexible OLED display of claim 1, wherein the packaging film is made of PI or PET.

4. The flexible organic light emitting diode display screen of claim 1, wherein the thin-film transistor layer has a thickness of 50 μm.

5. The flexible OLED display of claim 1, wherein the polarizer comprises a polarizing layer, a scattering layer and a matte layer.

6. The flexible OLED display screen of claim 5, wherein the fogging layer is a layer of glue, and transparent particles are uniformly distributed in the glue.

7. The flexible OLED display of claim 6 wherein the light transmissive particles are PMMA particles.

8. The flexible organic light emitting diode display screen of claim 5, wherein the scattering layer comprises a refractive layer and a barrier layer that are alternately stacked.

9. An electronic device, wherein the flexible organic light emitting diode display screen of any one of claims 1 to 8 is mounted on the electronic device.