CN210182418U

CN210182418U - Display device and electronic equipment

Info

Publication number: CN210182418U
Application number: CN201921314607.1U
Authority: CN
Inventors: Zhou Gan; 甘舟; Wenjie Shi; 施文杰; Mingang Zhang; 张敏刚; 史文杰
Original assignee: Incoflex Semiconductor Technology Ltd
Current assignee: Incoflex Semiconductor Technology Ltd
Priority date: 2019-08-14
Filing date: 2019-08-14
Publication date: 2020-03-24
Anticipated expiration: 2029-08-14

Abstract

The embodiment of the disclosure relates to a display device and an electronic device. The display device may include: a protective cover plate; the display panel comprises an encapsulation layer, a first electrode layer, an organic light-emitting layer, a second electrode layer and a substrate which are sequentially stacked from top to bottom; the protective cover plate is arranged on the packaging layer of the display panel through an optical adhesive layer, and the haze of the optical adhesive layer is 10-80%. The display device of the embodiment of the disclosure avoids the use of a polaroid, reduces the thickness of the display device, and improves the weather resistance of the display device; the optical adhesive with the haze of 10-80% has an anti-glare effect, can scatter ambient light for 2 times, reduces the intensity of the ambient light received by a display device viewer, enhances the antireflection performance of the display device, and further improves the visual performance of the display device.

Description

Display device and electronic equipment

Technical Field

The embodiment of the disclosure relates to the technical field of display, in particular to a display device and electronic equipment.

Background

In the conventional stack of display panels, such as AMOLED display, the cathode is usually made of a metal material with good conductivity, and the reflectivity of the metal material is high, as shown in fig. 1. The most common cathode material is silver, which has a reflectivity of more than 90% in the visible light band, and is very easy to reflect the external ambient light, resulting in a reduction in the visibility of the display panel.

For example, the cathode of the conventional AMOLED display is planar, and in order to reduce or eliminate the influence of ambient light on the visibility of the display, a circular polarizer is required to be added to the display stack to absorb the ambient light. However, polarizers are thick and susceptible to moisture and failure. The current trend of AMOLED display technology is towards thinning, and the use of the polarizer is not in line with the trend.

Accordingly, there is a need to ameliorate one or more of the problems with the related art solutions described above.

It is to be noted that the information disclosed in the above background section is only for enhancement of understanding of the background of the present disclosure, and thus may include information that does not constitute prior art known to those of ordinary skill in the art.

SUMMERY OF THE UTILITY MODEL

An object of the disclosed embodiments is to provide a display device, an electronic apparatus, and a computer program product, which overcome one or more of the problems due to the limitations and disadvantages of the related art, at least to some extent.

According to a first aspect of embodiments of the present disclosure, there is provided a display device including:

the display panel comprises an encapsulation layer, a first electrode layer, an organic light-emitting layer, a second electrode layer and a substrate which are sequentially stacked from top to bottom;

the protective cover plate is arranged on the packaging layer of the display panel through an optical adhesive layer, and the haze of the optical adhesive layer is 10-80%.

In an exemplary embodiment of the present disclosure, the haze of the optical adhesive layer is 20-70%.

In one exemplary embodiment of the present disclosure, the first electrode layer is a cathode layer and the second electrode layer is an anode layer; or the first electrode layer is an anode layer and the second electrode layer is a cathode layer.

In one exemplary embodiment of the present disclosure, the first electrode layer and/or the second electrode layer is a patterned electrode layer.

In an exemplary embodiment of the present disclosure, the display device further includes a touch functional layer located between the protective cover plate and the display panel.

In an exemplary embodiment of the present disclosure, the display panel is an AMOLED display panel.

In an exemplary embodiment of the present disclosure, the protective cover plate includes at least a glass cover plate, a polyamide cover plate, or a polyimide PI cover plate.

In an exemplary embodiment of the present disclosure, the optical adhesive layer includes at least an OCA optical adhesive layer.

According to a second aspect of the embodiments of the present disclosure, there is provided an electronic apparatus including the display device described above.

In an example embodiment of the present disclosure, the electronic device includes at least a smartphone or a wearable electronic device.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:

in the embodiment of the disclosure, the display device avoids the use of a polaroid, reduces the thickness of the display device and improves the weather resistance of the display device; the optical adhesive with the haze of 10-80% has an anti-glare effect, can scatter ambient light, reduces the intensity of the ambient light received by a display device viewer, enhances the antireflection performance of the display device, and further improves the visibility performance of the display device.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure. It is to be understood that the drawings in the following description are merely exemplary of the disclosure, and that other drawings may be derived from those drawings by one of ordinary skill in the art without the exercise of inventive faculty.

FIG. 1 shows a reflectance graph of a common metallic material;

FIG. 2 shows a stack up of a prior art display device;

fig. 3 illustrates a stack view of a display device in an exemplary embodiment of the present disclosure.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repetitive description will be omitted. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities. These functional entities may be implemented in the form of software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor devices and/or microcontroller devices.

Fig. 1 is a graph showing the reflectivity of common metal materials, and it can be seen from fig. 1 that the reflectivity of common metals such as silver, aluminum, rhodium, platinum, and copper is high, wherein the reflectivity of silver, which is commonly used as a cathode material, is over 90% in the visible light band, and external ambient light is easily reflected, which results in the visibility of the display device being reduced.

Fig. 2 shows a display device in the prior art, which is formed by sequentially stacking a protective cover plate 101, an optical adhesive layer 102, a polarizer 103, an optical adhesive layer 104, an encapsulation layer 105, a first electrode layer 106, an organic light emitting layer 107, a second electrode layer 108, and a substrate 109 from top to bottom. In order to reduce or eliminate the influence of ambient light on the visibility of the display device, a polarizer needs to be disposed in the display device to absorb the ambient light, but the polarizer is thick and is susceptible to moisture and failure.

In the present example embodiment, a display device is provided, as shown in fig. 3, the display device may include a protective cover 300 and a display panel 200, and the display panel 200 may include an encapsulation layer 202, a first electrode layer 203, an organic light emitting layer 204, a second electrode layer 205, and a substrate 206, which are sequentially stacked from top to bottom.

The protective cover 300 is disposed on the encapsulation layer 202 of the display panel 200 through an optical adhesive layer 201, and the haze of the optical adhesive layer 201 is 10-80%.

The display device in the embodiment avoids the use of a polaroid, reduces the thickness of the display device and improves the weather resistance of the display device; the optical adhesive layer with the haze of 10-80% can reduce light generated by reflection of the display device, the effect of diffuse reflection is achieved, ambient light can be scattered for example for 2 times (when the ambient light is incident on the optical adhesive layer, light is scattered once respectively after being reflected by the electrodes and then passing through the optical adhesive layer), glare generated by reflection is greatly reduced, the intensity of the ambient light received by a viewer of the display device is reduced, the antireflection performance of the display device is enhanced, and the visibility performance of the display device is further improved.

Further, optionally, in an embodiment, the haze of the optical adhesive layer 201 may be 20 to 70%, for example, 20%, 27.6%, 41.4%, 74.9%, and the like, and reference may be made to an optical adhesive in the prior art, where the haze is in the haze range, and the optical adhesive layer 201 can better scatter ambient light, enhance the antireflection performance of the display device, and further improve the visual performance of the display device. In addition, on the basis of adjusting the haze of the optical adhesive layer 201, the glossiness and transmittance of the optical adhesive layer 201 can be continuously adjusted, so that a better anti-glare effect is achieved, and the visual performance of the display device is further improved.

Further, optionally, in an embodiment, the first electrode layer 203 is a cathode layer, and the second electrode layer 205 is an anode layer, for example, a bottom emission type display device may be used; alternatively, the first electrode layer 203 is an anode layer and the second electrode layer 205 is a cathode layer, and may be a top emission type display device, for example.

Further, optionally, in an embodiment, the first electrode layer 203 and/or the second electrode layer 205 are patterned electrode layers, for example, the patterned cathode layer may reduce an area of the cathode layer in a projection of a light-emitting direction of the display device, so that an antireflection performance of the display device may be enhanced, and further, a visual performance of the display device is improved.

Further, optionally, in an embodiment, the display device may further include a touch functional layer located between the protective cover 300 and the display panel 200.

Further, optionally, in an embodiment, the display panel 200 is an AMOLED display panel, but is not limited thereto. By avoiding the use of the polaroid, the thickness of the display panel is reduced, and the flexible AMOLED display panel is favorably manufactured.

Further, optionally, in an embodiment, the protective cover 300 includes at least a glass cover, a polyamide cover, or a polyimide PI cover, but is not limited thereto.

Further, optionally, in an embodiment, the optical adhesive layer 201 at least includes an OCA optical adhesive layer, but is not limited thereto, and is used for bonding the protective cover plate and the display panel.

The electronic equipment is further provided in the example embodiment, and the electronic equipment comprises the display device.

Further, optionally, in an embodiment, the electronic device includes at least a smartphone or a wearable electronic device.

The display device in the embodiment avoids the use of a polaroid, reduces the thickness of the display device and improves the weather resistance of the display device; the optical adhesive with the haze of 10-80% can scatter the ambient light for 2 times, so that the intensity of the ambient light received by a viewer of the display device is reduced, the antireflection performance of the display device is enhanced, and the visibility of the display device is improved.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

Claims

1. A display device, characterized in that the display device comprises:

a protective cover plate;

2. The display device according to claim 1, wherein the optical adhesive layer has a haze of 20-70%.

3. The display device according to claim 2, wherein the first electrode layer is a cathode layer and the second electrode layer is an anode layer; or the first electrode layer is an anode layer and the second electrode layer is a cathode layer.

4. A display device as claimed in claim 3, characterized in that the first electrode layer and/or the second electrode layer is a patterned electrode layer.

5. The display device according to claim 1, further comprising a touch functional layer between the protective cover and the display panel.

6. The display device according to any one of claims 1 to 5, wherein the display panel is an AMOLED display panel.

7. The display device of claim 6, wherein the protective cover sheet comprises at least a glass cover sheet, a polyamide cover sheet, or a polyimide PI cover sheet.

8. The display device according to claim 6, wherein the optical adhesive layer comprises at least an OCA optical adhesive layer.

9. An electronic device comprising the display device according to any one of claims 1 to 8.

10. The electronic device of claim 9, wherein the electronic device comprises at least a smartphone or a wearable electronic device.