CN115811901A - Mirror display panel and electronic equipment - Google Patents

Abstract

The application provides a mirror display panel, mirror display panel includes: an array substrate; the array substrate comprises a first electrode layer positioned on one side of the array substrate, wherein the first electrode layer comprises a plurality of first electrodes arranged at intervals; the pixel defining layer is positioned on one side, far away from the array substrate, of the first electrode layer and comprises a pixel opening exposing the first electrode, and the adjacent first electrodes are mutually spaced through the pixel defining layer; a light emitting material layer positioned in the pixel opening; the second electrode layer is positioned on one side, far away from the array substrate, of the light-emitting material layer and the pixel defining layer; and the reflecting layer is positioned on one side of the second electrode layer, which is far away from the array substrate, and comprises a reflecting opening corresponding to the position of the pixel opening. Through setting up the reflection stratum in one side that the array substrate was kept away from to the second electrode layer, can reduce the distance between reflection stratum and the first electrode layer for first electrode layer can be regarded as the speculum face together with the reflection stratum, thereby improves mirror display panel's specular reflection imaging effect.

Description

Mirror display panel and electronic equipment

Technical Field

The application relates to the technical field of display equipment, in particular to a mirror display panel and electronic equipment.

Background

With the popularization of intelligent devices, the forms of display devices are becoming diversified. In some display devices, a display function is incorporated into the mirror so that the mirror can display as a display screen. However, the conventional mirror display panel has a poor display effect or reflection imaging effect due to its structural limitation.

Disclosure of Invention

In order to overcome the above-mentioned deficiencies in the prior art, an object of the present application is to provide a mirror display panel, comprising:

an array substrate;

the first electrode layer is positioned on one side of the array substrate and comprises a plurality of first electrodes which are arranged at intervals;

the pixel defining layer is positioned on one side, far away from the array substrate, of the first electrode layer and comprises a pixel opening exposing the first electrode;

and the reflecting layer is positioned on one side of the pixel defining layer, which is far away from the array substrate, and comprises reflecting openings, and the orthographic projection of the pixel openings on the array substrate is positioned in the orthographic projection of the reflecting openings on the array substrate. In this way, by directly disposing the reflective layer on the side of the pixel defining layer away from the array substrate, the distance between the reflective layer and the first electrode layer can be reduced, so that the first electrode layer and the reflective layer can jointly form a mirror reflective layer of the mirror display panel (i.e., the first electrode layer and the reflective layer can together serve as a mirror), thereby simultaneously improving the mirror reflection imaging effect and the display effect of the mirror display panel.

In one possible implementation, the pixel defining layer includes a slope region surrounding the pixel opening, and an orthographic projection of the slope region on the first electrode layer is located at an edge of the first electrode, and a slope of the slope region is less than 45 degrees.

Therefore, by reducing the slope of the slope region, the refraction angle of the slope region to incident and reflected light can be reduced as much as possible, so that the influence of the slope region on the reflection effect of the edge of the first electrode covered by the slope region is reduced.

In a possible implementation manner, an orthographic projection of the reflecting layer on the array substrate at least partially coincides with an edge of an orthographic projection of the first electrode on the array substrate.

Therefore, no gap exists between the reflection layer and the orthographic projection of the first electrode on the array substrate, and each position of the light-emitting surface of the mirror display panel has a reflection function to form a whole mirror reflection area, so that the integrity of the mirror reflection of the display device can be improved.

In a possible implementation manner, the pixel defining layer includes a slope region, the slope region surrounds the pixel opening, and an orthographic projection of the slope region on the first electrode layer is located at an edge of the first electrode, and the slope region is provided with a plurality of through holes exposing the first electrode.

Therefore, the slope surface area is provided with the through hole, so that incident light and reflected light can pass through the through hole, the blockage of the slope surface area on the first electrode is reduced, and the influence of the slope surface on the reflection effect of the edge of the first electrode covered by the slope surface area is reduced.

In one possible implementation, the plurality of through holes includes at least two different apertures.

In a possible implementation manner, the plurality of through holes are distributed in the slope surface area in a non-periodic manner.

In one possible implementation, the plurality of through holes includes at least two different hole pitches.

Thus, by arranging the through holes with various apertures, distribution positions or hole intervals, the distribution of the through holes on the whole can be aperiodic, so that diffraction generated by the through holes when light is reflected is reduced, and the influence of the slope on the reflection effect of the edge of the first electrode covered by the slope is reduced.

In one possible implementation, the material of the reflective layer comprises silver.

Therefore, the high-reflectivity silver is used as the material of the reflecting layer, so that the reflecting layer can be ensured to have a better reflecting effect.

In one possible implementation, the mirror display panel further includes:

a light emitting material layer in the pixel opening;

the second electrode layer is positioned on one side, far away from the array substrate, of the luminescent material layer and the reflecting layer;

a first inorganic encapsulation layer located on a side of the second electrode layer away from the pixel defining layer;

the organic packaging layer is positioned on one side, far away from the second electrode layer, of the first inorganic packaging layer;

the second inorganic packaging layer is positioned on one side, far away from the first inorganic packaging layer, of the organic packaging layer; and the number of the first and second groups,

and the cover plate layer is positioned on one side, far away from the organic packaging layer, of the second inorganic packaging layer.

In this way, by disposing the second electrode layer, the first inorganic encapsulation layer, the organic encapsulation layer, the second inorganic encapsulation layer and other film layers on the side of the reflection layer away from the pixel defining layer, the distance between the reflection layer and the first electrode layer can be reduced, so that the first electrode layer and the reflection layer can be used as a mirror surface together, thereby improving the mirror surface reflection imaging effect of the mirror display panel.

Another object of the present application is to provide an electronic device, which includes the display mirror display panel provided in the present application.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

FIG. 1 is a schematic diagram of a prior art mirror display panel;

FIG. 2 is a second schematic view of a prior art mirror display panel;

fig. 3 is a schematic diagram of a partial film layer of the mirror display panel according to the present embodiment;

fig. 4 is a second schematic diagram of a partial film layer of the mirror display panel provided in this embodiment;

fig. 5 is a third schematic diagram of a partial film layer of the mirror display panel provided in this embodiment;

FIG. 6 is a fourth schematic diagram of a partial film layer of the mirror display panel provided in this embodiment;

FIG. 7 is a fifth schematic diagram of a partial film layer of the mirror display panel provided in this embodiment;

fig. 8 is a sixth schematic view of a partial film layer of the mirror display panel provided in this embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, it should be noted that the terms "center", "upper", "lower", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that the present invention is conventionally placed in when used, and are only used for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

It should be noted that, in case of conflict, different features in the embodiments of the present application may be combined with each other.

Referring to fig. 1, some mirror display panels capable of achieving a mirror reflection effect include an array substrate 110, a first electrode layer, a pixel defining layer 130, a light emitting material layer 140, a second electrode layer 150, a first inorganic encapsulation layer 160, an organic encapsulation layer 170, a second inorganic encapsulation layer 180, a reflection layer 900, and a cover plate layer 190.

The first electrode layer is located on one side of the array substrate 110, and the first electrode layer may include a plurality of first electrodes 121 spaced apart from each other. The first electrode layer may be an anode layer.

The pixel defining layer 130 is disposed on a side of the first electrode layer away from the array substrate 110, and the pixel defining layer 130 includes a pixel opening exposing the first electrode 121.

The light emitting material layer 140 is positioned in the pixel opening and contacts the first electrode 121.

The second electrode layer 150 is located on a side of the light emitting material layer 140 and the pixel defining layer 130 away from the array substrate 110. The second electrode layer 150 may be a cathode layer.

The first inorganic encapsulation layer 160 is located on one side of the second electrode layer 150 far away from the array substrate 110, the organic encapsulation layer 170 is located on one side of the first inorganic encapsulation layer 160 far away from the second electrode layer 150, the second inorganic encapsulation layer 180 is located on one side of the organic encapsulation layer 170 far away from the first inorganic encapsulation layer 160, the reflection layer 900 is located on one side of the second inorganic encapsulation layer 180 far away from the organic encapsulation layer 170, and the cover plate layer 190 is located on one side of the reflection layer 900 far away from the second inorganic encapsulation layer 180. The reflective layer 900 is used to implement a specular reflection function.

In one embodiment, the reflective layer 900 has a certain light transmittance while having a reflective function, so that light emitted from the luminescent material layer 140 under the reflective layer 900 can pass through the reflective layer 900 to realize a display function. However, the reflective layer 900 generally cannot have a good light transmission effect and a good reflection effect at the same time, and a part of the reflection effect needs to be sacrificed when the display function is realized, so that the mirror reflection effect of the mirror display panel is not good.

In another scheme, referring to fig. 2, a plurality of reflective openings are formed in the reflective layer 900, and the reflective openings correspond to the positions of the light emitting material layers 140 in the pixel openings. Thus, the light emitted from the light emitting material layer 140 can be emitted through the reflective opening, so that the reflective layer 900 does not need to have high light transmittance, and can also realize the display function. However, it is difficult to realize specular reflection at the reflection opening, and the mirror display panel has a reflection missing region, which affects the entire specular reflection effect.

In view of the above, the present embodiment provides a solution to the above problems, and the solution provided by the present embodiment is described in detail below.

Referring to fig. 3, fig. 3 is a schematic diagram of a part of film layers of a mirror display panel according to the present embodiment, where the mirror display panel may include an array substrate 110, a first electrode layer, a pixel defining layer 130, and a reflective layer 200.

The array substrate 110 may include an array of a plurality of driving units, for example, a Thin Film Transistor (TFT).

The first electrode layer may include a plurality of first electrodes 121 disposed at intervals. The first electrode 12 is a reflective electrode. In the present embodiment, the first electrode 121 may include a metal having a superior reflective property, for example, silver (Ag). In one possible implementation, the first electrode 121 may be a composite layer of Indium Tin Oxide (ITO) and silver (Ag), for example, a three-layer composite layer of ITO-Ag-ITO.

The first electrode 121 may be an anode. Different first electrodes 121 may be electrically connected to different driving circuits in the array substrate 110.

The pixel defining layer 130 is disposed on a side of the first electrode layer away from the array substrate 110, the pixel defining layer 130 includes a pixel opening capable of exposing the first electrode 121, and adjacent first electrodes 121 are spaced from each other by the pixel defining layer 130.

The reflective layer 200 is located on a side of the pixel defining layer 130 away from the array substrate 110, the reflective layer 200 includes a reflective opening, an orthogonal projection of the pixel opening on the array substrate is located in an orthogonal projection of the reflective opening on the array substrate, that is, the pixel opening and the reflective opening are overlapped in a direction perpendicular to the light-emitting surface of the mirror display panel, and the pixel opening and the reflective opening corresponding to the positions expose the first electrode 121. The reflective layer 200 serves to implement a specular reflection function. In one possible implementation, the reflective layer 200 may be made of a material having a high reflectivity, for example, the material of the reflective layer 200 may include silver (Ag).

Based on the above design, compared to the prior art in which the reflective layer 200 is disposed on the side close to the cover plate layer 190, in the mirror display panel provided in this embodiment, by directly disposing the reflective layer 200 on the side of the pixel defining layer 130 far from the array substrate 110, the distance between the reflective layer 200 and the first electrode 121 can be reduced, so as to reduce the optical path difference between the light reflected by the first electrode 121 and the light reflected by the reflective layer 200. Therefore, the first electrode 121 can function as a mirror surface together with the reflective layer 200, thereby improving the mirror reflection image forming effect of the mirror display panel.

In a possible implementation manner, referring to fig. 4, the pixel opening may further be provided with a light emitting material layer 140, and one side of the reflective layer 200 away from the array substrate 110 may further include other film layers such as a second electrode layer 150, a first inorganic encapsulation layer 160, an organic encapsulation layer 170, and a second inorganic encapsulation layer 180, a cover plate layer 190.

Specifically, the light emitting material layer 140 is located in the pixel opening of the pixel defining layer 130. In the present embodiment, the light emitting material layer 140 includes an organic electroluminescent material. Based on the embodiment in which the first electrode 121 is an anode, in this embodiment, optionally, a film structure such as an Electron Blocking Layer (EBL), a Hole Transport Layer (HTL), and a Hole Injection Layer (HIL) may be further included between the light emitting material Layer 140 and the first electrode 121.

The second electrode layer 150 is located on a side of the light emitting material layer 140 and the reflective layer 200 away from the array substrate 110, and the second electrode layer 150 may be a cathode layer. Optionally, in this embodiment, a film structure such as an Electron Injection Layer (EIL), an Electron Transport Layer (ETL), and a Hole blocking Layer (EBL) may be further included between the second electrode Layer 150 and the light emitting material Layer 140 and between the second electrode Layer 150 and the reflective Layer 200.

For example, in the present embodiment, after the pixel defining Layer 130 is formed, the reflective Layer 200 may be formed, and then the organic material evaporation is performed to form a Hole Injection Layer (HIL), a Hole Transport Layer (HTL), an Electron Blocking Layer (EBL), and an emitting material Layer 140 in the pixel opening, and then the Hole blocking Layer (EBL), the Electron Transport Layer (ETL), the Electron Injection Layer (EIL), and the second electrode Layer 150 may be sequentially formed to cover the emitting material Layer 140 and the reflective Layer 200.

The first inorganic encapsulation layer 160 is located on one side of the second electrode layer 150 away from the array substrate 110, the organic encapsulation layer 170 is located on one side of the first inorganic encapsulation layer 160 away from the second electrode layer 150, the second inorganic encapsulation layer 180 is located on one side of the organic encapsulation layer 170 away from the first inorganic encapsulation layer 160, and the cover plate layer 190 is located on one side of the second inorganic encapsulation layer 180 away from the organic encapsulation layer 170.

In one possible implementation, the pixel defining layer 130 includes a slope region, the slope region encloses the pixel opening, and an orthographic projection of the slope region on the first electrode 121 is located at an edge of the first electrode 121, and a slope of the slope region is less than 45 degrees.

Specifically, referring to fig. 5, the first electrode 121 may include an edge position covered by the pixel defining layer 130 and a center position not covered by the pixel defining layer 130. The slope region covers the edge of the first electrode 121, the surface of the slope region away from the array substrate is a slope, and the height of the slope from the first electrode is gradually reduced in the direction from the edge of the first electrode 121 to the center of the first electrode 121. Because the slope has a certain angle, the light which is emitted to the first electrode 121 and the light reflected by the first electrode 121 are refracted, so that the mirror reflection image at the corresponding position of the slope area is distorted. Therefore, in this embodiment, the slope angle α between the slope region and the first electrode 121 is set to be smaller than 45 degrees, so that the slope of the slope region is relatively gentle, the influence of the slope region on the light propagation angle can be reduced, and the imaging distortion of the corresponding position of the slope region is reduced.

In a possible implementation manner, the pixel defining layer further includes a flat region connected to the slope region, the flat region is located between adjacent pixel openings, and the heights of the flat region at the side far away from the array substrate are approximately the same. The orthographic projection of the reflective layer 121 on the pixel defining layer falls within the flat region. In other words, the reflective layer 121 covers only one side surface of the flat region away from the array substrate. In this way, the reflective layer 121 on the flat region can maintain a substantially flat surface, thereby ensuring a flat imaging effect of the reflective layer 121.

In one possible implementation, there is at least partial coincidence between the orthographic projection of the reflective layer 200 on the array substrate 110 and the edge of the orthographic projection of the first electrode 121 on the array substrate 110.

Specifically, referring to fig. 6, in the present embodiment, the edge of the first electrode 121 may be covered by the reflective layer 200 in a direction perpendicular to the light exit surface by enlarging the first electrode 121. Thus, there is no gap between the reflective layer 200 and the orthographic projection of the first electrode 121 on the array substrate 110, and each position of the light-emitting surface of the mirror display panel has a reflective function, so as to form a whole mirror reflection area, thereby improving the integrity of the mirror reflection of the display device.

Meanwhile, as mentioned above, due to the small optical path difference, the light reflected by the first electrode 121 and the light reflected by the reflective layer 200 do not interfere with each other (i.e. no significant diffraction is formed), so that the position of the light-emitting surface corresponding to the orthographic projection overlapping area of the reflective layer 200 and the first electrode 121 can also satisfy the requirement of specular reflection. From this perspective, the requirement for the opening accuracy of the reflective layer 200 is also reduced, thereby reducing the difficulty in manufacturing the mirror display panel. Therefore, the mirror display panel with good mirror reflection imaging effect and display effect can be obtained by a simple manufacturing process.

In one possible implementation manner, referring to fig. 7, the pixel defining layer 130 includes a slope region located at an edge of a side of the first electrode 121 away from the array substrate 110, and the slope region is provided with a plurality of through holes 300 exposing the first electrode 121.

Specifically, in the present embodiment, after the reflective layer 200 is formed on the pixel defining layer 130, the pixel defining layer 130 at the slope region position may be perforated to expose the first electrode 121.

Thus, by providing the through hole 300 in the slope region, the incident light and the reflected light can pass through the through hole 300, and the angle of the light is not changed by the refraction of the slope region, so that the influence of the slope region on the reflection effect of the edge of the first electrode 121 covered by the slope region is reduced.

Further, referring to fig. 8, in a possible implementation manner, the plurality of through holes 300 includes at least two different apertures.

In another possible implementation, the plurality of through holes 300 are non-periodically distributed in the land area. For example, the plurality of through holes 300 may be randomly distributed in the sloped region.

In another possible implementation, the plurality of through-holes 300 includes at least two different hole pitches.

Thus, by providing the through holes 300 with various apertures, distribution positions or hole pitches, the distribution of the plurality of through holes 300 as a whole can be aperiodic, thereby reducing diffraction generated by the through holes 300 when light is reflected and reducing the influence of the slope on the reflection effect of the edge of the first electrode 121 covered by the slope.

Based on the same inventive concept, the present embodiment also provides an electronic device, which may include the mirror display panel provided by the present embodiment. The electronic equipment can comprise intelligent dressing mirrors, intelligent cosmetic mirrors, intelligent rearview mirrors and other equipment.

To sum up, mirror display panel and electronic equipment that this application provided, through with the reflection stratum directly sets up the pixel defines the layer and keeps away from one side of array substrate can reduce the reflection stratum with distance between the first electrode layer makes first electrode layer can with the reflection stratum is as the reflection mirror face together, thereby improves mirror display panel's specular reflection imaging effect.

Further, the mirror reflection display effect of the mirror display panel can be improved by covering the edge of the first electrode with the reflection layer. The influence of the slope area on the mirror reflection imaging effect can be reduced by setting the slope area gradient of the pixel definition layer, setting the through holes in the slope area and the like.

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

Claims (10)

1. A mirror display panel, comprising:

an array substrate;

the first electrode layer is positioned on one side of the array substrate and comprises a plurality of first electrodes which are arranged at intervals;

the pixel defining layer is positioned on one side, far away from the array substrate, of the first electrode layer and comprises a pixel opening used for exposing the first electrode; and the number of the first and second groups,

and the reflecting layer is positioned on one side of the pixel defining layer, which is far away from the array substrate, and comprises reflecting openings, and the orthographic projection of the pixel openings on the array substrate is positioned in the orthographic projection of the reflecting openings on the array substrate.

2. The mirror display panel according to claim 1, wherein the pixel defining layer includes a slope region which surrounds the pixel opening and an orthographic projection of the slope region on the first electrode layer is located at an edge of the first electrode, and a slope of the slope region is less than 45 degrees.

3. The mirror display panel according to claim 1, wherein an orthographic projection of the reflective layer on the array substrate and an edge of the orthographic projection of the first electrode on the array substrate are at least partially coincident.

4. The mirror-surface display panel according to claim 1, wherein the pixel defining layer includes a sloped region which surrounds the pixel opening, and an orthographic projection of the sloped region on the first electrode layer is located at an edge of the first electrode, and the sloped region is provided with a plurality of through holes which expose the first electrode.

5. A mirror display panel in accordance with claim 4, wherein said plurality of through holes comprises at least two different apertures.

6. The mirror display panel according to claim 4, wherein the plurality of through holes are non-periodically distributed in the land area.

7. The mirror display panel according to claim 4, wherein the plurality of through holes comprise at least two different hole pitches.

8. The mirror display panel according to claim 1, wherein a material of the reflective layer comprises silver.

9. The mirror display panel according to claim 1, further comprising:

a light emitting material layer in the pixel opening;

the second electrode layer is positioned on one side, far away from the array substrate, of the luminescent material layer and the reflecting layer;

a first inorganic encapsulation layer located on a side of the second electrode layer away from the pixel defining layer;

the organic packaging layer is positioned on one side, far away from the second electrode layer, of the first inorganic packaging layer;

the second inorganic packaging layer is positioned on one side, far away from the first inorganic packaging layer, of the organic packaging layer; and the number of the first and second groups,

and the cover plate layer is positioned on one side, far away from the organic packaging layer, of the second inorganic packaging layer.

10. An electronic device characterized in that the electronic device comprises the mirror display panel according to any one of claims 1 to 9.

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