CN110767712B

CN110767712B - OLED array substrate, display panel and display device

Info

Publication number: CN110767712B
Application number: CN201910152696.2A
Authority: CN
Inventors: 楼均辉
Original assignee: Yungu Guan Technology Co Ltd
Current assignee: Yungu Guan Technology Co Ltd
Priority date: 2019-02-28
Filing date: 2019-02-28
Publication date: 2021-01-26
Anticipated expiration: 2039-02-28
Also published as: CN110767712A; WO2020173057A1

Abstract

The invention relates to an OLED array substrate, a display panel and a display device. The OLED array substrate comprises: the display device comprises a transparent display area, a non-transparent display area and a transition area positioned between the transparent display area and the non-transparent display area. The non-transparent display region includes a first OLED pixel in which the first anode is a non-transparent anode. The transparent display area includes a second OLED pixel having a second anode that is a transparent anode. The transition region comprises a third OLED pixel; the third anode of the third OLED pixel includes a non-transparent anode region and a transparent anode region; in the plurality of third OLED pixels in a direction from the non-transparent display region to the transparent display region, a ratio of an area of the opaque anode region in one third anode to an area of the entire third anode decreases in sequence, and a ratio of an area of the transparent anode region to an area of the entire third anode increases in sequence. According to the embodiment of the invention, the display brightness can be gradually transited from the non-transparent display area to the transparent display area, and an obvious boundary between the non-transparent display area and the transparent display area is avoided.

Description

OLED array substrate, display panel and display device

Technical Field

The invention relates to the technical field of display, in particular to an OLED array substrate, a display panel and a display device.

Background

With the rapid development of display devices, the requirements of users on screen occupation are higher and higher. Since the top of the screen needs to be provided with elements such as a camera, a sensor, an earphone, etc., in the related art, a part of area is usually reserved at the top of the screen for installing the elements, for example, the "bang" area of iphoneX of the iphone, which affects the overall consistency of the screen. Currently, full-screen displays are receiving more and more attention from the industry.

Disclosure of Invention

The invention provides an OLED array substrate, a display panel and a display device, which aim to overcome the defects in the related art.

According to a first aspect of embodiments of the present invention, there is provided an OLED array substrate including: a transparent display area, a non-transparent display area and a transition area; the transition region is positioned between the transparent display region and the non-transparent display region;

the non-transparent display area comprises first OLED pixels arranged in an array manner; the first anode of the first OLED pixel is a non-transparent anode; the transparent display area comprises second OLED pixels which are arranged in an array manner; the second anode of the second OLED pixel is a transparent anode; the transition region comprises a first type transition region or a second type transition region;

the first-type transition region at least comprises a plurality of third OLED pixels which are arranged in an array manner; the third anode of the third OLED pixel includes a non-transparent anode region and a transparent anode region; in a plurality of third OLED pixels in the direction from the non-transparent display area to the transparent display area, the ratio of the area of the non-transparent anode region in one third anode to the area of the whole third anode is sequentially reduced, and the ratio of the area of the transparent anode region to the area of the whole third anode is sequentially increased;

the second-type transition region comprises N second-type sub-transition regions which are sequentially arranged in a first direction in which the non-transparent display region points to the transparent display region, each second-type sub-transition region comprises first OLED pixels and second OLED pixels which are arranged in an array mode, and along the first direction, the proportion of the first OLED pixels in the second-type sub-transition regions is sequentially reduced, and the proportion of the second OLED pixels in the second-type sub-transition regions is sequentially increased; n is a natural number.

In one embodiment, when the transition region comprises the first type of transition region, the non-transparent anode region of the third anode is located at a side close to the non-transparent display region and the transparent anode region of the third anode is located at a side close to the transparent display region in a direction in which the non-transparent display region points to the transparent display region.

Because each third anode comprises the non-transparent anode region and the transparent anode region, the display brightness of the transition region can be more uniform, and visual discomfort caused by overlarge brightness difference of adjacent pixels is avoided. In addition, in the direction in which the non-transparent display area points to the transparent display area, the non-transparent anode region of the third anode is located at a side close to the non-transparent display area, and the transparent anode region of the third anode is located at a side close to the transparent display area, so that the luminance transition from the non-transparent display area to the transparent display area can be smoother.

In one embodiment, in the direction in which the non-transparent display area points to the transparent display area, the first-type transition area includes K first-type sub-transition areas arranged in sequence, where K is a natural number; in the same first-type sub-transition region, the ratio of the area of the non-transparent anode region to the area of the transparent anode region of each third anode is substantially the same.

In the same first-type sub-transition region, the ratio of the area of the non-transparent anode region to the area of the transparent anode region of each third anode is basically the same, so that the preparation is convenient and the preparation process is simplified.

In one embodiment, K is 1, 2, or 3.

The number of sub-transition zones in the transition zone may be 1, 2 or 3. The larger the number of sub-transition regions, the more advantageous it is to make the transition of the display luminance from the non-transparent display region to the transparent display region smoother. The number of sub-transition regions in the transition region may be determined according to the fluency of the display brightness transition from the non-transparent display region to the transparent display region.

In one embodiment, when K is 3, in a direction in which the non-transparent display area points to the transparent display area, the K first-type sub-transition areas include a first sub-transition area, a second sub-transition area, and a third sub-transition area that are sequentially arranged;

in the direction of the non-transparent display area pointing to the transparent display area, each first-class sub-transition area comprises a third OLED pixel;

in the first sub-transition region, the proportion of the area of the opaque anode region of the third anode in each third OLED pixel to the area of the entire third anode is 70% -80%, and the proportion of the area of the transparent anode region of the third anode to the area of the entire third anode is 30% -20%;

in the second sub-transition region, the proportion of the area of the opaque anode region of the third anode in each third OLED pixel to the entire third anode area is 50%, and the proportion of the area of the transparent anode region of the third anode to the entire third anode area is 50%;

in the third sub-transition region, the proportion of the area of the opaque anode region of the third anode in each third OLED pixel to the area of the entire third anode is 20% to 30%, and the proportion of the area of the transparent anode region of the third anode to the area of the entire third anode is 80% to 70%.

When the transition region comprises a first sub-transition region, a second sub-transition region and a third sub-transition region, and in the direction from the non-transparent display region to the transparent display region, each first-type sub-transition region comprises a third OLED pixel, in the first sub-transition region, the proportion of the area of the opaque anode region of the third anode in each third OLED pixel to the area of the whole third anode is 70% -80%, and the proportion of the area of the transparent anode region of the third anode to the area of the whole third anode is 30% -20%; in the second sub-transition region, the proportion of the area of the opaque anode region of the third anode in each third OLED pixel to the entire third anode area is 50%, and the proportion of the area of the transparent anode region of the third anode to the entire third anode area is 50%; in the third sub-transition region, the ratio of the area of the opaque anode region of the third anode in each third OLED pixel to the area of the entire third anode is 20% -30%, and the ratio of the area of the transparent anode region of the third anode to the area of the entire third anode is 80% -70%, so that not only is the luminance transition from the non-transparent display region to the transparent display region smoother, but also the difficulty in preparation caused by the excessively small area of the transparent anode region or the opaque anode region can be avoided.

Preferably, in the first sub-transition region, the opaque anode region of the third anode in each third OLED pixel has an area accounting for 75% of the total third anode area, and the transparent anode region of the third anode has an area accounting for 25% of the total third anode area;

preferably, in the third sub-transition region, the opaque anode region of the third anode in each third OLED pixel accounts for 25% of the total third anode area, and the transparent anode region of the third anode accounts for 75% of the total third anode area.

In one embodiment, a pixel defining layer is disposed between the non-transparent anode region and the transparent anode region of the third anode.

A pixel defining layer is arranged between the non-transparent anode region and the transparent anode region of the third anode, so that the phenomenon that the luminescent layer is influenced by the unevenness of the junction of the non-transparent anode region and the transparent anode region can be prevented.

In one embodiment, the non-transparent anode region of the third anode is electrically connected to the transparent anode region.

Since the non-transparent anode region is electrically connected to the transparent anode region, it is possible to facilitate the use of the same pixel driving circuit.

Preferably, the non-transparent anode region and the transparent anode region of the third anode are electrically connected and then connected to the same pixel driving circuit.

The non-transparent anode region and the transparent anode region of the third anode are electrically connected and then connected to the same pixel driving circuit, so that the number of the pixel driving circuits can be reduced, the space is saved, and the preparation difficulty is reduced.

In one embodiment, when the transition region includes the second-type transition region, the first OLED pixels and the second OLED pixels are respectively and uniformly distributed in the same second-type sub-transition region.

Because the same second-type sub-transition region comprises the first OLED pixel and the second OLED pixel, the display brightness can be gradually transited from the non-transparent display region to the transparent display region, the preparation difficulty can be reduced, and the production efficiency is improved.

In one embodiment, N is 1, 2 or 3.

The number of sub-transition regions of the second type in the transition region may be 1, 2 or 3. The larger the number of sub-transition regions of the second type, the more advantageous it is to make the luminance transition from the non-transparent display region to the transparent display region smoother. The number of sub-transition regions of the second type in the transition region may be determined according to the fluency of the luminance transition from the non-transparent display region to the transparent display region.

In one embodiment, preferably, when N is 3, in the first direction, the N second-type sub-transition regions include a first sub-transition region, a second sub-transition region, and a third sub-transition region arranged in sequence;

in the first direction, each second-type sub-transition region comprises a first OLED pixel or a second OLED pixel;

in the first sub-transition region, the proportion of the first OLED pixels is 70% -80%, and the proportion of the second OLED pixels is 30% -20%;

in the second sub-transition region, the proportion of the first OLED pixels is 50%, and the proportion of the second OLED pixels is 50%;

in the third sub-transition region, the proportion of the first OLED pixels is 30% -20%, and the proportion of the second OLED pixels is 70% -80%.

When the transition region comprises a first sub-transition region, a second sub-transition region and a third sub-transition region, and in the first direction, each second type sub-transition region comprises a first OLED pixel or a second OLED pixel; in the first sub-transition region, the proportion of the first OLED pixels is 70% -80%, and the proportion of the second OLED pixels is 30% -20%; in the second sub-transition region, the proportion of the first OLED pixels is 50%, and the proportion of the second OLED pixels is 50%; in the third sub-transition region, the proportion of the first OLED pixels is 30% -20%, and the proportion of the second OLED pixels is 70% -80%, so that the brightness transition from the non-transparent display region to the transparent display region is smoother, and the preparation difficulty can be reduced.

Preferably, in the first sub-transition region, the proportion of the first OLED pixels is 75%, and the proportion of the second OLED pixels is 25%.

Preferably, in the third sub-transition region, the proportion of the first OLED pixels is 25%, and the proportion of the second OLED pixels is 75%.

In one embodiment, the transparent display area may be rectangular, the length of the transparent display area is 3 mm, and the width of the transparent display area is 3 mm. The transparent display area is rectangular and regular in shape, so that the preparation difficulty can be reduced.

In one embodiment, the transparent display area is in any one of the following shapes: drop shape, circular, rectangular, oval.

In one embodiment, the driving manner of the second OLED pixels in the transparent display area is active driving or passive driving.

In one embodiment, the pixel driving circuit of the second OLED pixel in the transparent display area is a 1T circuit, a 2T1C pixel driving circuit, a 3T1C pixel driving circuit, a 3T2C pixel driving circuit, a 4T1C pixel driving circuit, a 5T1C pixel driving circuit, a 6T1C pixel driving circuit, a 7T1C pixel driving circuit, or a 7T2C pixel driving circuit.

In one embodiment, the pixel density of the first OLED pixels in the non-transparent display area is greater than the pixel density of the second OLED pixels in the transparent display area.

In one embodiment, when the transition region includes the first-type transition region, the third OLED pixel is a pixel of any one color in a pixel unit in the first-type transition region, the pixel unit includes M-color pixels, and M is a natural number.

The pixels of any color in the pixel units in the transition region can adopt the technical scheme of the embodiment, so that the design cost can be reduced.

Preferably, M is 3.

When the pixel unit in the transition region includes 3 color pixels, the transition region can be made to display a picture of a plurality of colors.

Preferably, when M is 3, a pixel of a red color, a pixel of a green color, and a pixel of a blue color are included in the same pixel unit.

When the pixel unit in the transition region includes a pixel of a red color, a pixel of a green color, and a pixel of a blue color, the transition region can be made to display a picture of a plurality of colors.

Preferably, in the same pixel unit, the red color pixel, the green color pixel, and the blue color pixel are arranged side by side or distributed in a delta shape.

When the red color pixels, the green color pixels and the blue color pixels in the pixel units in the transition region are arranged side by side or distributed in a delta shape, the preparation difficulty can be reduced.

In one embodiment, when the transition region includes the second type transition region, the first OLED pixel or the second OLED pixel is a pixel of any one color in a pixel unit in the second type transition region, the pixel unit includes pixels of L colors, and L is a natural number. The pixels of any color in the pixel units in the transition region can adopt the technical scheme of the embodiment, so that the design cost can be reduced.

Preferably, L is 3.

Preferably, when L is 3, a pixel of a red color, a pixel of a green color, and a pixel of a blue color are included in the same pixel unit.

In one embodiment, the second OLED pixels arranged in an array in the transparent display area include a row and a plurality of columns of the second OLED pixels.

The second OLED pixels are arranged in a row and a plurality of columns, so that the structure is simple, the preparation is convenient, and the control is also convenient.

Preferably, the row and columns of second OLED pixels include pixels of multiple colors, and each column of pixels of different colors in a row forms a pixel unit.

Because the second OLED pixels in the transparent display area in a row and a plurality of columns comprise pixels with a plurality of colors, and each column of pixels with different colors in the row form a pixel unit, the transparent display area can display pictures with a plurality of colors, thereby enriching the implementation mode.

Preferably, all the second OLED pixels in the columns in the transparent display area are same color pixels.

And all the second OLED pixels in the columns in the transparent display area are same-color pixels, so that the preparation process can be simplified.

In one embodiment, the first OLED pixel includes: the OLED device comprises a block-shaped first anode, an OLED light-emitting structure and a first cathode; the row of several columns of second OLED pixels includes: the OLED device includes a second anode extending in a column direction, an OLED light emitting structure on the second anode, and a second cathode on the OLED light emitting structure.

The second anode of the second OLED pixel extends along the column direction, and the OLED light-emitting structure and the second cathode also extend along the column direction, so that the structure of the second OLED pixel is simplified, the preparation is convenient, the boundary of the pattern film layer can be reduced, and the diffraction problem is improved.

Preferably, the OLED light emitting structure of the second OLED pixel extends in a column direction on the second anode, or there are a plurality of OLED light emitting structures distributed at intervals on the second anode of the second OLED pixel.

When the OLED light-emitting structure of the second OLED pixel extends along the column direction on the second anode, the preparation is convenient, and the cost is low. When a plurality of OLED light-emitting structures distributed at intervals exist on the second anode of the second OLED pixel, the preparation and control are convenient, and the over-low resolution can be avoided.

Preferably, the plurality of OLED light emitting structures are separated by a pixel defining layer, or there is no pixel defining layer between adjacent OLED light emitting structures in the plurality of OLED light emitting structures.

When the plurality of OLED light emitting structures are separated by the pixel defining layer, the OLED light emitting structure can be conveniently prepared, and when no pixel defining layer exists between the adjacent OLED light emitting structures in the plurality of OLED light emitting structures, the diffraction problem can be improved. Because a plurality of OLED light-emitting structures distributed at intervals can exist on the transparent anode of the second OLED pixel, the plurality of OLED light-emitting structures can be separated by the pixel defining layer, and no pixel defining layer exists between the adjacent OLED light-emitting structures in the plurality of OLED light-emitting structures, the implementation modes of the OLED light-emitting structures of the second OLED pixel are enriched.

Preferably, the projection of the second anode of each column of the second OLED pixels on the plane of the OLED array substrate is composed of one graphic unit or more than two graphic units; the graphic units are round, oval, dumbbell-shaped, gourd-shaped or rectangular.

Because the second anode of the second OLED pixel comprises a circular, oval, dumbbell-shaped, gourd-shaped or rectangular structure, interference fringes can be superposed and cancelled, diffraction in a transparent mode of the transparent display area is reduced, and imaging quality is improved.

Preferably, the ratio of the length of the second anode of the second OLED pixel in the column direction to the width in the row direction is greater than 20: 1.

Preferably, the second cathode of each of the second OLED pixels is connected to a plane electrode, or the first cathode of each of the first OLED pixels is connected to the second cathode of each of the second OLED pixels to a plane electrode.

The second cathodes of the second OLED pixels are connected to form a plane electrode, or the first cathode of the first OLED pixel is connected to the second cathode of the second OLED pixel to form a plane electrode, so that the preparation process can be simplified.

Preferably, the second anode of each column of the second OLED pixels and the OLED light emitting structure extend in a column direction in a middle section of the transparent display area, or extend from a top end of the transparent display area downward to the middle, a bottom end, or from the middle to the bottom end.

Since the transparent anode of each column of the second OLED pixels and the OLED light-emitting structure extend in the column direction in a section of the middle portion of the transparent display area, or extend from the top end of the transparent display area to the middle portion, the bottom end, or from the middle portion to the bottom end, embodiments of the positions of the transparent anode of the second OLED pixels and the OLED light-emitting structure in the transparent display area are enriched.

According to a second aspect of embodiments of the present invention, there is provided a display panel including:

the OLED array substrate is provided;

the packaging layer is packaged on one side, far away from the substrate of the OLED array substrate, and a photosensitive device can be arranged below the transparent display area;

preferably, at least part of the transparent display area on the OLED array substrate is surrounded by the non-transparent display area;

preferably, the encapsulation layer includes a polarizer covering the non-transparent display region and not covering the transparent display region.

The polaroid can eliminate the ambient light entering the display panel from the display panel and then reflected out of the display panel, so that the ambient light can be eliminated to interfere the normal display of the display panel.

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

an apparatus body having a device region;

the display panel described above;

the display panel covers the equipment body;

the device region is positioned below the transparent display region and comprises a photosensitive device which transmits or collects light rays through the transparent display region;

preferably, the photosensitive device comprises at least one of:

camera, light sensor, light emitter.

In an embodiment of the present invention, a transition region is disposed between the transparent display region and the non-transparent display region, wherein the first anode of the first OLED pixel in the non-transparent display region is a non-transparent anode capable of reflecting light emitted by the light emitting layer of the first OLED pixel, the second anode of the second OLED pixel in the transparent display region is a transparent anode capable of transmitting light emitted by the light emitting layer of the second OLED pixel, and the transition region includes a first-type transition region or a second-type transition region. When the transition region comprises a first transition region, the first transition region at least comprises a plurality of third OLED pixels which are arranged in an array mode, third anodes of the third OLED pixels comprise non-transparent anode regions and transparent anode regions, in the plurality of third OLED pixels in the direction from the non-transparent display regions to the transparent display regions, the proportion of the area of the non-transparent anode region in one third anode to the area of the whole third anode is reduced in sequence, and the proportion of the area of the transparent anode region to the area of the whole third anode is increased in sequence. The second type transition area is in the non-transparent display area points to N second type sub-transition areas arranged in sequence on the first direction of the transparent display area, each second type sub-transition area comprises first OLED pixels and second OLED pixels arranged in an array mode, and the proportion occupied by the first OLED pixels in the second type sub-transition areas is reduced in sequence and the proportion occupied by the second OLED pixels is increased in sequence along the first direction. Therefore, the display brightness of the transition region is less than that of the non-transparent display region and greater than that of the transparent display region. Moreover, in the direction from the non-transparent display area to the transparent display area, the brightness of the transition area is gradually reduced, that is, the display brightness is gradually transited from the non-transparent display area to the transparent display area, so that an obvious boundary between the non-transparent display area and the transparent display area is avoided, and the display quality can be improved.

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 invention, as claimed.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a schematic view showing a structure of a full-screen according to the related art;

FIG. 2 is a schematic structural diagram of an OLED array substrate according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram illustrating another OLED array substrate according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of another OLED array substrate according to a third embodiment of the present invention;

FIG. 5 is a schematic structural diagram of another OLED array substrate according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of another OLED array substrate according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of another OLED array substrate according to a seventh embodiment of the present invention.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.

In the related art, as shown in fig. 1, there is a full-screen 1 including a non-transparent display region 11 and a transparent display region 12, and the transparent display region 12 can implement both a light transmission function and a display function. Wherein, a photosensitive element such as a camera, a distance sensor, etc. is arranged below the transparent display area 12. Because the pixels in the transparent display area 12 and the pixels in the non-transparent display area 11 are different in material or structure, the display brightness of the transparent display area 12 and the non-transparent display area 11 is greatly different, and thus an obvious boundary exists between the transparent display area and the non-transparent display area, which affects user experience.

In view of the above technical problems, embodiments of the present invention provide an OLED array substrate, a display panel and a display device, which can solve the above technical problems, gradually transition display luminance from a non-transparent display area to a transparent display area, avoid an obvious boundary between the non-transparent display area and the transparent display area, and improve display quality.

An embodiment of the present invention provides an OLED array substrate, as shown in fig. 2, including: a non-transparent display area 11, a transparent display area 12 and a transition area 13. The transition region 13 is located between the transparent display region 12 and the non-transparent display region 11.

The non-transparent display region 11 includes first OLED pixels (not shown) arranged in an array, and the first anodes of the first OLED pixels are non-transparent anodes. The transparent display area 12 includes second OLED pixels (not shown) arranged in an array. The second anode of the second OLED pixel is a transparent anode. The transition zone 13 comprises a transition zone of a first type.

As shown in fig. 3, the first-type transition region at least includes a plurality of third OLED pixels R, G or B arranged in an array. The third anode 15 of the third OLED pixel R, G or B comprises a non-transparent anode region 151 and a transparent anode region 152. In a plurality of the third OLED pixels R, G or B in the direction F from the non-transparent display region 11 to the transparent display region 12, the ratio of the area of the opaque anode region 151 in one of the third anodes 15 to the area of the entire third anode 15 decreases in sequence, and the ratio of the area of the transparent anode region 152 to the area of the entire third anode 15 increases in sequence.

It should be noted that, in the embodiment of the present invention, one pixel (the first OLED pixel, the second OLED pixel, or the third OLED pixel) is a pixel of one color, the light emitting structure layer of one pixel is connected into a whole and corresponds to an evaporation opening of a mask, a normal pixel corresponds to an integral anode, an anode corresponding to one pixel in the transition region includes 2 regions, that is, a non-transparent anode region and a transparent anode region, the 2 anode regions together form an anode corresponding to one pixel in the transition region, and potentials of the 2 anode regions during operation are the same.

In an embodiment of the present invention, a transition region is disposed between the transparent display region and the non-transparent display region, wherein the first anode of the first OLED pixel in the non-transparent display region is a non-transparent anode capable of reflecting light emitted by the light emitting layer of the first OLED pixel, the second anode of the second OLED pixel in the transparent display region is a transparent anode capable of transmitting light emitted by the light emitting layer of the second OLED pixel, and the transition region includes a first-type transition region. The first-class transition region at least comprises a plurality of third OLED pixels which are arranged in an array mode, the third anodes of the third OLED pixels comprise non-transparent anode regions and transparent anode regions, in the third OLED pixels in the direction from the non-transparent display regions to the transparent display regions, the proportion of the area of the non-transparent anode region in one third anode to the area of the whole third anode is reduced in sequence, and the proportion of the area of the transparent anode region to the area of the whole third anode is increased in sequence. Because the third anode comprises the non-transparent anode region and the transparent anode region, the display brightness of the transition region is smaller than that of the non-transparent display region and larger than that of the transparent display region. Moreover, in the third OLED pixels in the direction from the non-transparent display area to the transparent display area, the ratio of the area of the opaque anode region in one third anode to the area of the entire third anode decreases in sequence, and the ratio of the area of the transparent anode region to the area of the entire third anode increases in sequence, so that the luminance of the transition region gradually decreases in the direction from the non-transparent display area to the transparent display area, that is, the display luminance gradually transitions from the non-transparent display area to the transparent display area, thereby avoiding an obvious boundary between the non-transparent display area and the transparent display area, and improving the display quality.

The second embodiment of the invention also provides an OLED array substrate. In this embodiment, as shown in fig. 3, on the basis of the first embodiment of the present invention, in a direction in which the non-transparent display area 11 points to the transparent display area 12, the non-transparent anode area 151 of the third anode 15 is located at a side close to the non-transparent display area 11, and the transparent anode area 152 of the third anode 15 is located at a side close to the transparent display area 12.

The third embodiment of the invention also provides an OLED array substrate. In this embodiment, as shown in fig. 3 and 4, on the basis of the first or second embodiment of the present invention, in a direction F in which the non-transparent display area 11 points to the transparent display area 12, the first-type transition area includes K first-type sub-transition areas arranged in sequence, where K is a natural number; the ratio of the area of the non-transparent anode region 151 to the area of the transparent anode region 152 of each of said third anodes 15 is substantially the same in the same said first type of sub-transition region. In the same first-type sub-transition region, the ratio of the area of the non-transparent anode region to the area of the transparent anode region of each third anode is basically the same, so that the preparation is convenient and the preparation process is simplified.

In the embodiment of the present invention, the greater the number of the first type sub-transition regions, the more beneficial the transition of the display brightness from the non-transparent display region 11 to the transparent display region 12 is. In practical applications, the number of the first type sub-transition regions in the transition region may be determined according to the smoothness of the luminance transition from the non-transparent display region to the transparent display region. Specifically, K is 1, 2 or 3.

The fourth embodiment of the invention also provides an OLED array substrate. In this embodiment, as shown in fig. 3 and fig. 4, on the basis of the third embodiment of the present invention, when K is 3, in a direction F in which the non-transparent display area 11 points to the transparent display area 12, the K first-type sub-transition areas include a first sub-transition area 131, a second sub-transition area 132, and a third sub-transition area 133 that are sequentially arranged.

In the direction in which the non-transparent display area 11 points to the transparent display area 12, each first type sub-transition area comprises a third OLED pixel. In the first sub-transition region, the proportion of the area of the opaque anode region 151 of the third anode 15 in each third OLED pixel to the area of the entire third anode 15 is 70% to 80%, and the proportion of the area of the transparent anode region 152 of the third anode 15 to the area of the entire third anode 15 is 30% to 20%; in the second sub-transition region, the proportion of the area of the opaque anode region 151 of the third anode 15 in each third OLED pixel to the total third anode area is 50%, and the proportion of the area of the transparent anode region 152 of the third anode 15 to the total third anode 15 area is 50%; in the third sub-transition region, the ratio of the area of the opaque anode region 151 of the third anode 15 to the entire third anode 15 in each third OLED pixel is 30% -20%, and the ratio of the area of the transparent anode region 152 of the third anode 15 to the entire third anode 15 is 70% -80%.

When the transition region comprises a first sub-transition region, a second sub-transition region and a third sub-transition region, and in the direction from the non-transparent display region to the transparent display region, each first-type sub-transition region comprises a third OLED pixel, in the first sub-transition region, the proportion of the area of the opaque anode region of the third anode in each third OLED pixel to the area of the whole third anode is 70% -80%, and the proportion of the area of the transparent anode region of the third anode to the area of the whole third anode is 30% -20%; in the second sub-transition region, the proportion of the area of the opaque anode region of the third anode in each third OLED pixel to the entire third anode area is 50%, and the proportion of the area of the transparent anode region of the third anode to the entire third anode area is 50%; in the third sub-transition region, the proportion of the area of the opaque anode region of the third anode in each third OLED pixel to the area of the entire third anode is 30% -20%, and the proportion of the area of the transparent anode region of the third anode to the area of the entire third anode is 70% -80%, so that not only is the luminance transition from the non-transparent display region to the transparent display region smoother, but also the difficulty in preparation caused by the excessively small area of the transparent anode region or the opaque anode region can be avoided.

Preferably, in the first sub-transition region, the opaque anode region of the third anode in each third OLED pixel has an area accounting for 75% of the total third anode area, and the transparent anode region of the third anode has an area accounting for 25% of the total third anode area.

It should be noted that, as shown in fig. 3, the third OLED pixel is a pixel R, G or B of any color in the pixel unit 14 in the first-type transition region, where the pixel unit 14 includes pixels of M colors, and M is a natural number. The pixel of any color in the pixel unit 14 in the transition region 13 can adopt the technical solution of the above embodiment, so that the design cost can be reduced.

Preferably, M is 3. When the pixel unit in the transition region includes 3 color pixels, the transition region can be made to display a picture of a plurality of colors.

Preferably, when M is 3, the same pixel unit 14 includes a pixel R of red color, a pixel G of green color, and a pixel B of blue color. When the pixel unit in the transition region includes a pixel of a red color, a pixel of a green color, and a pixel of a blue color, the transition region can be made to display a picture of a plurality of colors.

In the present embodiment, as shown in fig. 2, in the same pixel unit 14, the red color pixel R, the green color pixel G, and the blue color pixel B are arranged side by side. In another embodiment, as shown in fig. 5, in the same pixel unit 14, the red color pixels R, the green color pixels G, and the blue color pixels B are distributed in a delta shape, or in a V-Style (V-shape) distribution. When the red color pixels, the green color pixels and the blue color pixels in the pixel units in the transition region are arranged side by side or distributed in a delta shape, the preparation difficulty can be reduced.

The fifth embodiment of the invention also provides an OLED array substrate. In this embodiment, as shown in fig. 6, on the basis of the first, second or third embodiments of the present invention, a pixel defining layer 52 is disposed between the non-transparent anode region 151 and the transparent anode region 152 of the third anode 15. As shown in fig. 6, the non-transparent anode region 151 and the transparent anode region 152 are disposed on the substrate (including the driving circuit) 51, the light-emitting layer 53 is disposed on the non-transparent anode region 151 and the transparent anode region 152, and the cathode 54 is disposed on the light-emitting layer 53.

The sixth embodiment of the invention also provides an OLED array substrate. In this embodiment, on the basis of the first embodiment of the present invention, the non-transparent anode region 151 of the third anode 15 is electrically connected to the transparent anode region 152.

Preferably, the non-transparent anode region 151 and the transparent anode region 152 of the third anode 15 are electrically connected and then connected to the same pixel driving circuit.

The seventh embodiment of the invention also provides an OLED array substrate. In the present embodiment, as shown in fig. 2 and 7, the method includes: a non-transparent display area 11, a transparent display area 12 and a transition area 13. The transition region 13 is located between the transparent display region 12 and the non-transparent display region 11.

The non-transparent display region 11 includes first OLED pixels (not shown) arranged in an array, and the first anodes of the first OLED pixels are non-transparent anodes. The transparent display area 12 includes second OLED pixels (not shown) arranged in an array. The second anode of the second OLED pixel is a transparent anode. The transition zone 13 comprises a second type of transition zone.

The second-type transition region includes N second-type sub-transition regions arranged in sequence in a first direction Y in which the non-transparent display region 11 points to the transparent display region 12, each second-type sub-transition region includes first OLED pixels 161 and second OLED pixels 162 arranged in an array, and along the first direction Y, the proportion of the first OLED pixels 161 in the second-type sub-transition regions decreases in sequence and the proportion of the second OLED pixels 162 increases in sequence; n is a natural number.

In an embodiment of the present invention, a transition region is disposed between the transparent display region and the non-transparent display region, wherein the first anode of the first OLED pixel in the non-transparent display region is a non-transparent anode capable of reflecting light emitted by the light emitting layer of the first OLED pixel, the second anode of the second OLED pixel in the transparent display region is a transparent anode capable of transmitting light emitted by the light emitting layer of the second OLED pixel, and the transition region includes a second type of transition region. The second type transition area is in the non-transparent display area points to including N second type sub-transition areas arranged in proper order on the first direction in transparent display area, every including the first OLED pixel and the second OLED pixel that array was arranged in the second type sub-transition area, and follow first direction, the shared proportion of first OLED pixel reduces in proper order, the shared proportion of second OLED pixel increases in proper order in the second type sub-transition area. Therefore, the display brightness of the transition region is less than that of the non-transparent display region and greater than that of the transparent display region. Moreover, in the direction from the non-transparent display area to the transparent display area, the brightness of the transition area is gradually reduced, that is, the display brightness is gradually transited from the non-transparent display area to the transparent display area, so that an obvious boundary between the non-transparent display area and the transparent display area is avoided, and the display quality can be improved.

The eighth embodiment of the invention also provides an OLED array substrate. In this embodiment, as shown in fig. 7, on the basis of the seventh embodiment of the present invention, in the same sub-transition region of the second type, the first OLED pixels 161 and the second OLED pixels 162 are respectively and uniformly distributed.

Because the same second-type sub-transition region comprises the first OLED pixel 161 and the second OLED pixel 162, the display brightness can be gradually transited from the non-transparent display region to the transparent display region, the preparation difficulty can be reduced, and the production efficiency can be improved.

Wherein, N can be 1, 2 or 3. The number of sub-transition regions of the second type in the transition region may be 1, 2 or 3. The larger the number of sub-transition regions of the second type, the more advantageous it is to make the luminance transition from the non-transparent display region to the transparent display region smoother. The number of sub-transition regions of the second type in the transition region may be determined according to the fluency of the luminance transition from the non-transparent display region to the transparent display region.

The ninth embodiment of the invention also provides an OLED array substrate. In this embodiment, as shown in fig. 7, on the basis of the seventh embodiment or the eighth embodiment of the present invention, when N is 3, in the first direction Y, the N second-type sub-transition regions include a first sub-transition region 131, a second sub-transition region 132, and a third sub-transition region 133 that are sequentially arranged.

In the first direction Y, each sub-transition region of the second type comprises a first OLED pixel 161 or a second OLED pixel 162. In the first sub-transition region 131, the proportion of the first OLED pixel 161 is 70% -80%, and the proportion of the second OLED pixel 162 is 30% -20%; in the second sub-transition region 132, the proportion of the first OLED pixel 161 is 50%, and the proportion of the second OLED pixel is 50%; in the third sub-transition region 133, the proportion of the first OLED pixel 161 is 30% to 20%, and the proportion of the second OLED pixel 162 is 70% to 80%.

When the transition region comprises a first sub-transition region, a second sub-transition region and a third sub-transition region, and in the first direction Y, each second type sub-transition region comprises a first OLED pixel or a second OLED pixel, in the first sub-transition region, the proportion of the first OLED pixels is 70% -80%, and the proportion of the second OLED pixels is 30% -20%; in the second sub-transition region, the proportion of the first OLED pixels is 50%, and the proportion of the second OLED pixels is 50%; in the third sub-transition region, the proportion of the first OLED pixels is 30% -20%, and the proportion of the second OLED pixels is 70% -80%, so that the brightness transition from the non-transparent display region to the transparent display region is smoother, and the preparation difficulty can be reduced.

As shown in fig. 7, the first OLED pixel 161 or the second OLED pixel 162 is a pixel of any color in the pixel unit 14 in the second-type transition region, where the pixel unit includes pixels of L colors, and L is a natural number.

Preferably, L is 3.

In one embodiment, as shown in fig. 2, the transparent display area 12 may be rectangular, the length of the transparent display area 12 may be 3 mm, and the width of the transparent display area may be 3 mm. The transparent display area is rectangular and regular in shape, so that the preparation difficulty can be reduced.

In one embodiment, the transparent display area 12 may be in any one of the following shapes: drop shape, circular, rectangular, oval.

In one embodiment, the driving manner of the second OLED pixels in the transparent display area is active driving. The pixel driving circuit of the second OLED pixel in the transparent display region is a 1T circuit, a 2T1C pixel driving circuit, a 3T1C pixel driving circuit, a 3T2C pixel driving circuit, a 4T1C pixel driving circuit, a 5T1C pixel driving circuit, a 6T1C pixel driving circuit, a 7T1C pixel driving circuit, or a 7T2C pixel driving circuit.

In one embodiment, the pixel density of the first OLED pixels in the non-transparent display region 11 is greater than the pixel density of the second OLED pixels in the transparent display region 12.

The embodiment of the invention also provides a display panel, which comprises the OLED array substrate and the encapsulation layer in any one of the embodiments.

The packaging layer is packaged on one side, far away from the substrate of the OLED array substrate, and a photosensitive device can be arranged below the transparent display area.

Preferably, at least part of the transparent display area on the OLED array substrate is surrounded by the non-transparent display area.

Preferably, the encapsulation layer includes a polarizer covering the non-transparent display region and not covering the transparent display region. The polaroid can eliminate the ambient light entering the display panel from the display panel and then reflected out of the display panel, so that the ambient light can be eliminated to interfere the normal display of the display panel.

In the embodiment of the invention, the display panel can ensure that the display brightness is gradually transited from the non-transparent display area to the transparent display area, thereby avoiding the existence of an obvious boundary between the non-transparent display area and the transparent display area and improving the display quality.

The embodiment of the invention also provides a display device, which comprises an equipment body and the display panel in any embodiment.

Wherein the device body has a device region. The display panel is covered on the device body. The device area is located below the transparent display area and comprises a photosensitive device which transmits the light emitted or collected by the transparent display area.

Preferably, the photosensitive device comprises at least one of: camera, light sensor, light emitter.

In the embodiment of the invention, the display device can gradually transit the display brightness from the non-transparent display area to the transparent display area, avoid an obvious boundary between the non-transparent display area and the transparent display area, and improve the display quality.

The display device in this embodiment may be: any product or component with a display function, such as electronic paper, a mobile phone, a tablet computer, a television, a notebook computer, a digital photo frame, a navigator, a watch, a VR (virtual reality)/AR (augmented reality)/MR (mixed reality), and the like.

It is noted that in the drawings, the sizes of layers and regions may be exaggerated for clarity of illustration. Also, it will be understood that when an element or layer is referred to as being "on" another element or layer, it can be directly on the other element or layer or intervening layers may also be present. In addition, it will be understood that when an element or layer is referred to as being "under" another element or layer, it can be directly under the other element or intervening layers or elements may also be present. In addition, it will also be understood that when a layer or element is referred to as being "between" two layers or elements, it can be the only layer between the two layers or elements, or more than one intermediate layer or element may also be present. Like reference numerals refer to like elements throughout.

In embodiments of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The term "plurality" means two or more unless expressly limited otherwise.

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

It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.

Claims

1. An OLED array substrate, comprising: a transparent display area, a non-transparent display area and a transition area; the transition region is positioned between the transparent display region and the non-transparent display region;

2. The OLED array substrate of claim 1, wherein when the transition region comprises the first type of transition region, the non-transparent anode region of the third anode is located at a side close to the non-transparent display region and the transparent anode region of the third anode is located at a side close to the transparent display region in a direction in which the non-transparent display region points to the transparent display region.

3. The OLED array substrate according to claim 2, wherein in a direction in which the non-transparent display region points to the transparent display region, the first-type transition region comprises K first-type sub-transition regions arranged in sequence, wherein K is a natural number; in the same first-type sub-transition region, the ratio of the area of the non-transparent anode region to the area of the transparent anode region of each third anode is substantially the same.

4. The OLED array substrate of claim 3, wherein K is 1, 2 or 3.

5. The OLED array substrate according to claim 4, wherein when K is 3, in a direction in which the non-transparent display area points to the transparent display area, the K first-type sub-transition areas comprise a first sub-transition area, a second sub-transition area and a third sub-transition area which are arranged in sequence;

6. The OLED array substrate of claim 5, wherein in the first sub-transition region, the opaque anode region of the third anode in each third OLED pixel has an area that accounts for 75% of the total third anode area, and the transparent anode region of the third anode has an area that accounts for 25% of the total third anode area.

7. The OLED array substrate of claim 5, wherein in the third sub-transition region, the opaque anode region of the third anode in each third OLED pixel accounts for 25% of the total third anode area, and the transparent anode region of the third anode accounts for 75% of the total third anode area.

8. The OLED array substrate of any one of claims 2 to 7, wherein a pixel defining layer is disposed between the non-transparent anode region and the transparent anode region of the third anode.

9. The OLED array substrate of any one of claims 2 to 7, wherein the non-transparent anode region of the third anode is electrically connected to the transparent anode region.

10. The OLED array substrate according to any one of claims 2 to 7, wherein the non-transparent anode region and the transparent anode region of the third anode are electrically connected and then connected to the same pixel driving circuit.

11. The OLED array substrate of claim 1, wherein when the transition region comprises the second type transition region, the first OLED pixels and the second OLED pixels are respectively and uniformly distributed in the same second type sub-transition region.

12. The OLED array substrate of claim 11, wherein N is 1, 2, or 3.

13. The OLED array substrate of claim 12, wherein when N is 3, in the first direction, the N second-type sub-transition regions comprise a first sub-transition region, a second sub-transition region and a third sub-transition region arranged in sequence;

14. The OLED array substrate of claim 13, wherein in the first sub-transition region, the first OLED pixels account for 75% and the second OLED pixels account for 25%.

15. The OLED array substrate of claim 13, wherein in the third sub-transition region, the first OLED pixels account for 25% and the second OLED pixels account for 75%.

16. The OLED array substrate of claim 1, wherein the transparent display area is rectangular, the length of the transparent display area is 3 mm, and the width of the transparent display area is 3 mm.

17. The OLED array substrate of claim 1, wherein the transparent display area is in any one of the following shapes: drop shape, circular, rectangular, oval.

18. The OLED array substrate of claim 1, wherein the second OLED pixels in the transparent display area are driven in an active driving manner or a passive driving manner.

19. The OLED array substrate of claim 1, wherein the pixel drive circuit of the second OLED pixel in the transparent display area is a 1T circuit, a 2T1C pixel drive circuit, a 3T1C pixel drive circuit, a 3T2C pixel drive circuit, a 4T1C pixel drive circuit, a 5T1C pixel drive circuit, a 6T1C pixel drive circuit, a 7T1C pixel drive circuit, or a 7T2C pixel drive circuit.

20. The OLED array substrate of claim 1, wherein a pixel density of a first OLED pixel in the non-transparent display area is greater than a pixel density of a second OLED pixel in the transparent display area.

21. The OLED array substrate of claim 1, wherein when the transition region comprises the first kind of transition region, the third OLED pixel is a pixel of any one color in a pixel unit in the first kind of transition region, the pixel unit comprises M colors of pixels, and M is a natural number.

22. The OLED array substrate of claim 21, wherein M is 3.

23. The OLED array substrate of claim 22, wherein when M is 3, the same pixel unit includes a red pixel, a green pixel, and a blue pixel.

24. The OLED array substrate of claim 23, wherein the red, green and blue pixels are arranged side by side or in a delta configuration in the same pixel unit.

25. The OLED array substrate of claim 1, wherein when the transition region comprises the second type transition region, the first OLED pixel or the second OLED pixel is a pixel of any one color in a pixel unit in the second type transition region, the pixel unit comprises pixels of L colors, and L is a natural number.

26. The OLED array substrate of claim 25, wherein L is 3.

27. The OLED array substrate of claim 26, wherein when L is 3, the same pixel unit includes a red pixel, a green pixel, and a blue pixel.

28. The OLED array substrate of claim 27, wherein the red, green and blue pixels are arranged side by side or in a delta configuration in the same pixel unit.

29. The OLED array substrate of claim 1, wherein the second OLED pixels arranged in an array in the transparent display area comprise a row and a plurality of columns of the second OLED pixels.

30. The OLED array substrate of claim 29, wherein the row of the plurality of columns of second OLED pixels comprises a plurality of colors of pixels, each column of pixels of different colors in a row forming a pixel unit.

31. The OLED array substrate of claim 29, wherein all columns of second OLED pixels in the transparent display area are same color pixels.

32. The OLED array substrate of any one of claims 29-30, wherein the first OLED pixel comprises: the OLED device comprises a block-shaped first anode, an OLED light-emitting structure and a first cathode; the row of several columns of second OLED pixels includes: the OLED device includes a second anode extending in a column direction, an OLED light emitting structure on the second anode, and a second cathode on the OLED light emitting structure.

33. The OLED array substrate of claim 32, wherein the OLED light emitting structure of the second OLED pixel extends in a column direction on the second anode, or there are a plurality of OLED light emitting structures spaced apart on the second anode of the second OLED pixel.

34. The OLED array substrate of claim 33, wherein the plurality of OLED light emitting structures are separated by a pixel defining layer or no pixel defining layer is between adjacent OLED light emitting structures in the plurality of OLED light emitting structures.

35. The OLED array substrate of claim 32, wherein the projection of the second anode of each column of the second OLED pixels on the plane of the OLED array substrate is composed of one or more than two graphic units; the graphic units are round, oval, dumbbell-shaped, gourd-shaped or rectangular.

36. The OLED array substrate of claim 32, the second anode of the second OLED pixel having a ratio of a length in a column direction to a width in a row direction greater than 20: 1.

37. The OLED array substrate of claim 32, wherein the second cathode of each of the second OLED pixels is connected as a planar electrode, or the first cathode of each of the first OLED pixels is connected as a planar electrode with the second cathode of each of the second OLED pixels.

38. The OLED array substrate of claim 32, wherein the second anode of each column of the second OLED pixels and the OLED light emitting structure extend in a column direction within a middle section of the transparent display area, or extend from a top end of the transparent display area down to a middle portion, a bottom end, or from a middle portion to a bottom end.

39. A display panel, comprising:

an OLED array substrate according to any one of claims 1 to 38;

and the packaging layer is packaged on one side, far away from the substrate of the OLED array substrate, and a photosensitive device can be arranged below the transparent display area.

40. The display panel of claim 39, wherein at least a portion of the transparent display area on the OLED array substrate is surrounded by a non-transparent display area.

41. The display panel of claim 39, wherein the encapsulation layer comprises a polarizer that covers the non-transparent display region and does not cover the transparent display region.

42. A display device, comprising: an apparatus body having a device region;

the display panel of any one of claims 39 to 41;

the display panel covers the equipment body;

the device area is located below the transparent display area and comprises a photosensitive device which transmits light to the transparent display area or collects light.

43. A display device as claimed in claim 42, wherein the light sensing means comprises at least one of: camera, light sensor, light emitter.