CN109841747B - Organic light-emitting display panel and display device - Google Patents
Organic light-emitting display panel and display device Download PDFInfo
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Abstract
The invention discloses an organic light-emitting display panel and a display device. The device comprises a substrate base plate; a plurality of light emitting cells formed on the base substrate; the light-emitting unit comprises an anode layer, a light-emitting layer and a cathode layer which are sequentially stacked; wherein the anode layer of at least part of the light emitting cells includes a first anode and a second anode disposed to be insulated from each other. According to the organic light-emitting display panel and the display device, at least part of the anode layers of the light-emitting units comprise the first anode and the second anode which are arranged in an insulated mode, the anodes in the light-emitting units are substantially divided into the two sub-electrodes which are arranged in an insulated mode, and then the light-emitting units are divided into the two sub-light-emitting units, so that the number of the light-emitting units is increased, the resolution of the organic light-emitting display panel is improved, and the display effect of the organic light-emitting display panel is improved on the premise that the size of the opening structures on the FMM is not reduced and the distance between the adjacent opening structures is not reduced.
Description
Technical Field
Embodiments of the present invention relate to organic light emitting display technologies, and in particular, to an organic light emitting display panel and a display device.
Background
As a new generation display, the organic light emitting display has better characteristics than a display such as a liquid crystal display, and the like, such as self-light emission without a backlight, realization of flexible display, and the like, and is also advantageous in contrast, response time, and the like.
Resolution (PPI) is a very important indicator of an organic light emitting display, and the higher the resolution of the organic light emitting display is, the better the display effect is. At present, an organic light emitting display is manufactured by an FMM (precision metal mask) through an evaporation method. It is apparent that the smaller the size of the opening structure on the FMM, the smaller the distance between the adjacent opening structures, and the higher the resolution of the organic light emitting display. However, the conventional FMM is fabricated by a wet etching technique, and limited by the etching technique level, there is a minimum size of the opening structure on the FMM and a minimum distance between adjacent opening structures on the FMM, which makes it impossible to further reduce the size of the opening structure on the FMM and the distance between adjacent opening structures to make the fabricated organic light emitting display have a higher resolution, so that the resolution improvement of the organic light emitting display falls into a bottleneck stage.
Disclosure of Invention
The invention provides an organic light-emitting display panel and a display device, which can improve the resolution of the organic light-emitting display panel on the premise of not reducing the size of an opening structure on an FMM and the distance between adjacent opening structures, thereby improving the display effect of the organic light-emitting display panel.
In a first aspect, an embodiment of the present invention provides an organic light emitting display panel, including:
a substrate base plate;
a plurality of light emitting cells formed on the base substrate; the light-emitting unit comprises an anode layer, a light-emitting layer and a cathode layer which are sequentially stacked;
wherein the anode layer of at least part of the light emitting cells includes a first anode and a second anode disposed to be insulated from each other.
Further, the device also comprises a plurality of switch units;
in the same light emitting unit, the first anode and the second anode are electrically connected to different switch units.
Further, in at least some of the light emitting cells, the anode layer includes a first anode and a second anode disposed to be insulated from each other, while the cathode layer includes a first cathode and a second cathode disposed to be insulated from each other.
Further, the light emitting units include a light emitting unit emitting a red light, a light emitting unit emitting a blue light, and a light emitting unit emitting a green light;
wherein, in the light emitting unit with the green emitting color, the anode layer comprises a first anode and a second anode which are arranged in an insulated way.
The light-emitting units form two groups of mutually-interpenetrated array structures, namely a first array structure and a second array structure;
the light-emitting units in odd columns form the first array structure together; in the first array structure, each row of the light-emitting units comprises a light-emitting unit with red light-emitting color, a light-emitting unit with green light-emitting color and a light-emitting unit with blue light-emitting color, in the same row of the light-emitting units, the light-emitting units are sequentially arranged according to a first light-emitting color sequence, and the light-emitting colors of the light-emitting units in the same row are the same;
the light-emitting units in even columns jointly form the second array structure; in the second array structure, each row of the light-emitting units comprises a pixel unit with red light-emitting color, a pixel unit with green light-emitting color and a pixel unit with blue light-emitting color, in the same row of the light-emitting units, the pixel units are sequentially arranged according to a second light-emitting color sequence, and the light-emitting colors of the light-emitting units in the same row are the same;
the first array structure and the second array structure are staggered with each other by half the width of the light-emitting unit;
the light emitting color of any one of the light emitting units is different from the light emitting color of the light emitting unit immediately adjacent thereto.
Wherein the shape of the light emitting unit is a polygon.
Furthermore, the shape of the light emitting unit is rectangular, in the first array structure, long sides of the light emitting units are parallel, and in the second array structure, long sides of the light emitting units are parallel;
the extending direction of the long side of the light emitting unit belonging to the first array structure intersects with the extending direction of the long side of the light emitting unit belonging to the second array structure.
Further, an included angle between the extending direction of the long side of the light emitting unit belonging to the first array structure and the extending direction of the long side of the light emitting unit belonging to the second array structure is 90 °.
Wherein the display panel includes a display area and a non-display area surrounding the display area;
the light-emitting unit is positioned in the display area;
the extending direction of the long sides of the light emitting units belonging to the first array structure forms an included angle of 45 degrees with the boundary line between the display area and the non-display area.
In a second aspect, embodiments of the present invention also provide an organic light emitting display device including the organic light emitting display panel according to any one of the first aspects.
The organic light-emitting display panel and the display device of the invention, through setting at least part of the anode layer of the light-emitting unit to comprise the first anode and the second anode which are insulated from each other, the anode in the light-emitting unit is substantially divided into two sub-electrodes which are insulated from each other, and then the light-emitting unit is divided into two sub-light-emitting units, thereby solving the problems that in the existing organic light-emitting display panel, because the size of the opening structure on the FMM has the minimum value and the distance between the adjacent opening structures on the FMM has the minimum value, the manufactured organic light-emitting display panel can not have higher resolution ratio by further reducing the size of the opening structure on the FMM and reducing the distance between the adjacent opening structures, the resolution ratio of the organic light-emitting display panel is improved to fall into the bottleneck stage, and the purpose that the size of the opening structure on the FMM is not reduced is achieved, and on the premise of not reducing the distance between the adjacent opening structures, the resolution of the organic light-emitting display panel is improved, and the display effect of the organic light-emitting display panel is further improved.
Drawings
In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, a brief description is given below of the drawings used in describing the embodiments. It should be clear that the described figures are only views of some of the embodiments of the invention to be described, not all, and that for a person skilled in the art, other figures can be derived from these figures without inventive effort.
Fig. 1 is a schematic cross-sectional view of an organic light emitting display panel according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of another organic light emitting display panel according to an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of another organic light emitting display panel provided in an embodiment of the invention;
FIG. 4 is a schematic cross-sectional view of another organic light emitting display panel according to an embodiment of the present invention;
fig. 5 is a schematic diagram illustrating a distribution of light emitting units of an organic light emitting display panel according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a distribution of light-emitting units of another organic light-emitting display panel according to an embodiment of the present invention;
FIG. 7 is a schematic top view illustrating an OLED panel according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of an organic light emitting display device according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Fig. 1 is a schematic cross-sectional view of an organic light emitting display panel according to an embodiment of the present invention, and referring to fig. 1, the organic light emitting display panel includes a substrate 11, a plurality of light emitting units formed on the substrate 11, the light emitting units including an anode layer 12, a light emitting layer 13, and a cathode layer 14, which are sequentially stacked; wherein the anode layer 12 of at least a part of the light emitting cells 130 includes a first anode 121 and a second anode 122 disposed to be insulated from each other.
The light emitting unit 130 of the organic light emitting display panel is composed of an anode, a light emitting layer 13 and a cathode 14, which are correspondingly arranged up and down, and the effective light emitting area of the light emitting unit 130 depends on the minimum area among the anode, the light emitting layer and the cathode, and is usually the anode. By providing the anode layer 12 of at least part of the light emitting cells 130 with the first anode 121 and the second anode 122 arranged to be insulated from each other, the electrodes in the anode layer are substantially arranged as two sub-anodes insulated from each other, i.e., the first anode 121 and the second anode 122, thereby obtaining two sub-light emitting cells 1301 and 1302, the number and density of the sub-light emitting cells are increased.
The preparation technology of the electrode is wet etching, the preparation technology of the organic light-emitting layer is thermal evaporation, the mask plate is required to regulate and control patterns when the electrode and the light-emitting layer are prepared, wherein the mask plate used by the light-emitting layer is FMM, the opening precision of the FMM is limited, so that the effective area of the light-emitting layer is large, the mask plate used for preparing the electrode does not need an opening, the effective area and the spacing distance of the electrode are high in precision, exposure and development can be carried out through the mask plate which is finer than the FMM when the first anode 121 and the second anode 122 are prepared, and therefore the first anode 121 and the second anode 122 which are arranged in an insulating mode are etched.
The organic light-emitting display panel and the display device of the invention, through setting at least part of the anode layer of the light-emitting unit to comprise the first anode and the second anode which are insulated from each other, the anode in the light-emitting unit is substantially divided into two sub-electrodes which are insulated from each other, and then the light-emitting unit is divided into two sub-light-emitting units, thereby solving the problems that in the existing organic light-emitting display panel, because the size of the opening structure on the FMM has the minimum value and the distance between the adjacent opening structures on the FMM has the minimum value, the manufactured organic light-emitting display panel can not have higher resolution ratio by further reducing the size of the opening structure on the FMM and reducing the distance between the adjacent opening structures, the resolution ratio of the organic light-emitting display panel is improved to fall into the bottleneck stage, and the purpose that the size of the opening structure on the FMM is not reduced is achieved, and on the premise of not reducing the distance between the adjacent opening structures, the resolution of the organic light-emitting display panel is improved, and the display effect of the organic light-emitting display panel is further improved.
Research shows that the resolution of the conventional display panel is only 350 at most, and the resolution of the display panel provided by the application can reach 500-600. The data again proves that the display panel provided by the application can obviously improve the resolution of the organic light-emitting display panel on the premise of not reducing the size of the opening structures on the FMM and the distance between the adjacent opening structures.
Further, the organic light emitting display panel may further include a plurality of switching units; in the same light emitting unit, the first anode and the second anode are electrically connected with different switch units. Wherein the switching unit may be a thin film transistor. Fig. 2 is a schematic cross-sectional view of an organic light emitting display panel according to an embodiment of the invention. Exemplarily, referring to fig. 2, in the organic light emitting display panel, the substrate is a TFT array substrate 11, each anode (a first anode 121 or a second anode 122) in the TFT array substrate 11 is disposed corresponding to one thin film transistor 111, and the thin film transistor 111 is electrically connected to the anode corresponding thereto, a light emitting layer 13 and a cathode layer 14 are sequentially disposed on the electrode layer 12, wherein the first anode 121 and the second anode 122 and the light emitting layer 13 in the adjacent light emitting unit 130 are isolated and insulated by an insulator 15, so that the light emitting unit where the corresponding anode 12 is located is controlled to be turned on and off by a TFT switch, thereby implementing a normal display function of the organic light emitting display panel.
Alternatively, in the organic light emitting display panel, at least some of the light emitting cells, the anode layer includes a first anode and a second anode that are disposed to be insulated from each other, and the cathode layer includes a first cathode and a second cathode that are disposed to be insulated from each other. Fig. 3 is a schematic cross-sectional view of another organic light emitting display panel according to an embodiment of the present invention, and exemplarily, referring to fig. 3, in order to make two sub-light emitting units sharing the same light emitting layer to display more effectively, the cathode layer 14 may not employ a common planar electrode, but may be disposed as a first cathode 141 and a second cathode 142 insulated from each other corresponding to a first anode and a second anode thereunder, and the sub-light emitting units are turned on and off by cooperation of the first anode and the first cathode or the second anode and the second cathode.
Alternatively, the light emitting units include a light emitting unit emitting a red color, a light emitting unit emitting a blue color, and a light emitting unit emitting a green color; in the light emitting unit with the green light emitting color, the anode layer comprises a first anode and a second anode which are arranged in an insulated mode. Since the luminous efficiency of the red and blue luminescent materials in the organic luminescent material is slightly lower than that of the green luminescent material, and human eyes are most sensitive to green light, when the green luminescent unit is divided into two sub-green luminescent units, the display effect is better than that of the sub-red luminescent unit or the sub-blue luminescent unit divided by the red or blue luminescent unit with the same size.
Fig. 4 is a schematic cross-sectional view of an organic light emitting display panel according to an embodiment of the present invention, and exemplarily referring to fig. 4, the organic light emitting display panel includes a green light emitting unit 130, a red light emitting unit 131, and a blue light emitting unit 132, wherein the green light emitting unit 130 is divided into two sub-green light emitting units 1301 and 1302, and an anode corresponding to the green light emitting unit is divided into two insulated sub-anodes, i.e., a first anode 121 and a second anode 122.
Optionally, the plurality of light emitting units form two groups of mutually-interspersed array structures, namely a first array structure and a second array structure; the odd columns of light-emitting units form a first array structure together; in the first array structure, each row of light-emitting units comprises a light-emitting unit with red light-emitting color, a light-emitting unit with green light-emitting color and a light-emitting unit with blue light-emitting color, in the same row of light-emitting units, all the light-emitting units are sequentially arranged according to the first light-emitting color sequence, and the light-emitting colors of the light-emitting units in the same row are the same; the even-numbered rows of light-emitting units jointly form a second array structure; in the second array structure, each row of light-emitting units comprises a pixel unit with red light-emitting color, a pixel unit with green light-emitting color and a pixel unit with blue light-emitting color, in the same row of light-emitting units, all the pixel units are sequentially arranged according to the second light-emitting color sequence, and the light-emitting colors of the light-emitting units in the same row are the same; the first array structure and the second array structure are staggered with each other by half the width of the light-emitting unit; the light emission color of any light emission unit is different from the light emission color of the light emission unit immediately adjacent thereto.
Fig. 5 is a schematic diagram of a distribution of light emitting units of an organic light emitting display panel according to an embodiment of the present invention. The distribution of the light emitting units in the organic light emitting display panel of the present invention can be varied, for example, referring to fig. 5, wherein the array structure formed by all the odd-numbered rows of light emitting units is a first array structure 51, and the array structure formed by all the even-numbered rows of light emitting units is a second array structure 52; the odd-numbered light-emitting units in the first array structure 51 and the even-numbered light-emitting units in the second array structure 52 are arranged alternately, and the light-emitting units thereon include green light-emitting units 130, red light-emitting units 131 and blue light-emitting units 132, and are arranged on the same column in the sequence shown in the figure, that is, the first light-emitting color sequence and the second light-emitting color sequence are both green, red and blue sequences, and the light-emitting colors of the light-emitting units are different from those of the light-emitting units adjacent to the light-emitting units, for example, one blue light-emitting unit 131 and one red light-emitting unit 132 are distributed above and below the green light-emitting unit 130, and two red light-emitting units 131 and two blue light-emitting units 132 are distributed on the left and right; the first array structure 51 and the second array structure 52 are misaligned by half the width of the light emitting unit, as shown in the figure, the nth row of pixel units of the first array structure 51 composed of odd columns is at the middle position of the mth row and the (m + 1) th row of pixel units of the second array structure 52 composed of even columns, that is, the first array structure 51 and the second array structure are misaligned by half the width of the row in the vertical direction shown in the figure.
Optionally, the shape of the light emitting unit is polygonal.
In order to effectively utilize the display area in the display panel, reduce the light-emitting unit gap and increase the pixel area, the polygon can be a quadrangle, a pentagon and the like with more than three side lengths, and the inner angle of the polygon can be set according to the actual situation.
Optionally, the light emitting units are rectangular, in the first array structure, long sides of the light emitting units are parallel, and in the second array structure, long sides of the light emitting units are parallel; the extending direction of the long side of the light emitting unit belonging to the first array structure intersects with the extending direction of the long side of the light emitting unit belonging to the second array structure.
Fig. 6 is a schematic diagram of distribution of light emitting units of another organic light emitting display panel according to an embodiment of the present invention, referring to fig. 6, wherein an array structure of the light emitting units arranged along a first direction 100 is a first array structure including all odd-numbered rows of light emitting units, and an array structure of the light emitting units arranged along a second direction 200 is a second array structure including all even-numbered rows of light emitting units; the odd-numbered light emitting units in the first array structure in the first direction and the even-numbered light emitting units in the second array structure in the second direction are arranged alternately, and the light emitting units thereon include green light emitting units 130, red light emitting units 131 and blue light emitting units 132, and are arranged on the same column in the illustrated color sequence of green, red and blue. In the figure, the light emitting units 130 are all rectangular structures, the long sides of the light emitting units in the first array structure are all arranged towards the first direction, the long sides of the light emitting units in the second array structure are all arranged towards the second direction, the extending directions of the long sides of the light emitting units in the first array structure and the long sides of the light emitting units in the second array structure are crossed, and the crossed included angle is 90 °.
Similarly, in the distribution diagram of the light emitting units, the green light emitting unit 130 is divided into the first sub-green light emitting unit 1301 and the second sub-green light emitting unit 1302, and the first sub-green light emitting unit 1301 in a certain green light emitting unit and the second sub-green light emitting unit 1302 in an adjacent green light emitting unit in the same row can form two pixel units 53 and 54 as shown in the figure by sharing the red light emitting unit 131 and the blue light emitting unit 132 at the middle position of the two green light emitting units, so that the green light emitting unit is divided into the two sub-green light emitting units, and the number of pixels can be effectively increased by increasing the number of the sub-green light emitting units, thereby improving the resolution of the organic light emitting display panel.
Specifically, the operating principle of the common red light emitting unit 131 and the blue light emitting unit 132 is: when the pixel unit 53 shown in the figure needs to be lit, scanning signals are fed to scanning lines where three light-emitting units in the pixel unit 53 are located, so that thin film transistors corresponding to the three light-emitting units are controlled to be conducted, and the light-emitting luminance of the three light-emitting units in the pixel unit 53 is controlled through the data signals fed to the data lines, so that an effect of cooperatively displaying different colors is achieved.
Exemplarily, the pixel unit 53 and the pixel unit 54 share one red light emitting unit 131 and one blue light emitting unit 132, wherein four light emitting units (one red light emitting unit 131, one blue light emitting unit 132, and two sub-green light emitting units 1301 and 1302) are included, and the sub-green light emitting units 1301 and 1302 and the sub-green light emitting units closest to the sub-green light emitting units are made of the same FMM opening, that is, each sub-green light emitting unit occupies half of the FMM opening, and the red light emitting unit and the blue light emitting unit occupy one FMM opening, respectively, so that it is obtained that the pixel unit 53 and the pixel unit 54 share three FMM openings, that is, three FMM openings are used to make two pixel units; compared with the pixel arrangement structure in the prior art, each light emitting unit corresponds to one FMM opening, wherein the three light emitting units of red, green and blue with different colors form one pixel unit, that is, the three FMM openings correspond to one pixel unit, so that the organic light emitting display panel provided by the embodiment of the invention can increase the number of the pixel units, improve the density of the pixel units and remarkably improve the resolution of the organic light emitting display panel through the pixel arrangement structure as shown in the figure on the premise of not reducing the size of the opening structure on the FMM and the distance between the adjacent opening structures.
Fig. 7 is a schematic diagram of an organic light emitting display panel according to an embodiment of the present invention, and referring to fig. 7, the display panel includes a display area 71 and a non-display area 72, light emitting units are distributed in the display area 71 to provide a display screen, and the non-display area 72 is a non-display area including a wiring area and a connection area, and is distributed around the display area. Wherein, the extension line of the long side of the rectangular light-emitting unit 130 in the display area 71 intersects with the boundary line between the display area 71 and the non-display area 72, and the intersecting angle is 45 °.
Fig. 8 is a schematic structural diagram of an organic light emitting display device according to an embodiment of the present invention, and referring to fig. 8, the organic light emitting display device 81 includes any one of the organic light emitting display panels according to an embodiment of the present invention. The organic light emitting display device can be a mobile phone, a notebook computer, an intelligent wearable device and the like.
The organic light-emitting display panel and the display device of the invention, through setting at least part of the anode layer of the light-emitting unit to comprise the first anode and the second anode which are insulated from each other, the anode in the light-emitting unit is substantially divided into two sub-electrodes which are insulated from each other, and then the light-emitting unit is divided into two sub-light-emitting units, thereby solving the problems that in the existing organic light-emitting display panel, because the size of the opening structure on the FMM has the minimum value and the distance between the adjacent opening structures on the FMM has the minimum value, the manufactured organic light-emitting display panel can not have higher resolution ratio by further reducing the size of the opening structure on the FMM and reducing the distance between the adjacent opening structures, the resolution ratio of the organic light-emitting display panel is improved to fall into the bottleneck stage, and the purpose that the size of the opening structure on the FMM is not reduced is achieved, and on the premise of not reducing the distance between the adjacent opening structures, the resolution of the organic light-emitting display panel is improved, and the display effect of the organic light-emitting display panel is further improved.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (7)
1. An organic light emitting display panel, comprising:
a substrate base plate;
a plurality of light emitting cells formed on the base substrate; the light-emitting unit comprises an anode layer, a light-emitting layer and a cathode layer which are sequentially stacked;
wherein the anode layers of the light emitting units at least partially sharing the same light emitting layer include a first anode and a second anode disposed to be insulated from each other;
the plurality of light-emitting units form two groups of mutually-interpenetrated array structures which are respectively a first array structure and a second array structure;
the light-emitting units in odd columns form the first array structure together; in the first array structure, each row of the light-emitting units comprises a light-emitting unit with red light-emitting color, a light-emitting unit with green light-emitting color and a light-emitting unit with blue light-emitting color, in the same row of the light-emitting units, the light-emitting units are sequentially arranged according to a first light-emitting color sequence, and the light-emitting colors of the light-emitting units in the same row are the same;
the light-emitting units in even columns jointly form the second array structure; in the second array structure, each row of the light-emitting units comprises a pixel unit with red light-emitting color, a pixel unit with green light-emitting color and a pixel unit with blue light-emitting color, in the same row of the light-emitting units, the pixel units are sequentially arranged according to a second light-emitting color sequence, and the light-emitting colors of the light-emitting units in the same row are the same;
the first array structure and the second array structure are staggered with each other by half the width of the light-emitting unit;
the light-emitting color of any one light-emitting unit is different from the light-emitting color of the light-emitting unit adjacent to the light-emitting unit;
the light-emitting units are rectangular, in the first array structure, long sides of the light-emitting units are parallel, and in the second array structure, long sides of the light-emitting units are parallel;
the extending direction of the long side of the light emitting unit belonging to the first array structure intersects with the extending direction of the long side of the light emitting unit belonging to the second array structure.
2. The organic light-emitting display panel according to claim 1, further comprising a plurality of switching units;
in the same light emitting unit sharing the same light emitting layer, the first anode and the second anode are electrically connected to different switching units.
3. The organic light-emitting display panel according to claim 1, wherein in the light-emitting units at least partially sharing the same light-emitting layer, the anode layer includes a first anode and a second anode that are arranged to be insulated from each other, while the cathode layer includes a first cathode and a second cathode that are arranged to be insulated from each other.
4. The organic light-emitting display panel according to claim 1, wherein the light-emitting units include a light-emitting unit whose light-emitting color is red, a light-emitting unit whose light-emitting color is blue, and a light-emitting unit whose light-emitting color is green;
wherein, in the light emitting unit which shares the same light emitting layer and has the green emitting color, the anode layer includes a first anode and a second anode which are arranged in an insulated manner.
5. The organic light emitting display panel according to claim 1, wherein an angle between an extending direction of a long side of the light emitting unit belonging to the first array structure and an extending direction of a long side of the light emitting unit belonging to the second array structure is 90 °.
6. The organic light-emitting display panel according to claim 1, wherein the display panel comprises a display area and a non-display area surrounding the display area;
the light-emitting unit is positioned in the display area;
the extending direction of the long sides of the light emitting units belonging to the first array structure forms an included angle of 45 degrees with the boundary line between the display area and the non-display area.
7. An organic light emitting display device comprising the organic light emitting display panel according to any one of claims 1 to 6.
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| CN111341810A (en) | 2020-03-06 | 2020-06-26 | 武汉华星光电半导体显示技术有限公司 | Organic light emitting diode display panel and display device |
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