CN110660835A - Organic light emitting display panel and organic light emitting display device - Google Patents
Organic light emitting display panel and organic light emitting display device Download PDFInfo
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- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
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- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
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Abstract
The embodiment of the invention provides an organic light-emitting display panel and an organic light-emitting display device, relates to the technical field of display, and aims to reduce the influence of a camera assembly on leakage current in pixels and improve the display performance. The organic light emitting display panel includes: a substrate base plate; a display area including an optical component setting area; a pixel including a first pixel circuit including a first transistor, the first transistor being located in the optical member disposition region; the first transistor comprises an active layer, a grid layer and a source drain layer which are sequentially stacked along the direction far away from the substrate, wherein the active layer comprises a channel region; the light shielding structure is positioned in the optical component arrangement area and positioned on one side of the active layer, which is far away from the light-emitting surface of the organic light-emitting display panel; the shading structure comprises a first shading layer, and the channel region and the first shading layer are completely overlapped in the direction perpendicular to the plane of the substrate.
Description
[ technical field ] A method for producing a semiconductor device
The present invention relates to the field of display technologies, and in particular, to an organic light emitting display panel and an organic light emitting display device.
[ background of the invention ]
An organic light emitting display device having a camera function generally includes an organic light emitting display panel in which an optical component arrangement region is disposed, and a camera assembly in which the optical component arrangement region corresponds to a position where the camera assembly is disposed. However, when the camera assembly shoots, the optical component in the camera assembly can emit light with high intensity, and the light can affect the leakage current of the pixels in the setting area of the optical component, so that the normal display is affected.
[ summary of the invention ]
In view of this, embodiments of the present invention provide an organic light emitting display panel and an organic light emitting display device, which can reduce the influence of a camera assembly on the leakage current in a pixel and improve the display performance.
In one aspect, an embodiment of the present invention provides an organic light emitting display panel, including:
a substrate base plate;
a display area including an optical component setting area;
a pixel including a first pixel circuit including a first transistor, the first transistor being located at the optical member disposition region; the first transistor comprises an active layer, a grid layer and a source drain layer which are sequentially stacked along the direction far away from the substrate, wherein the active layer comprises a channel region;
the light shielding structure is positioned in the optical component arrangement area and positioned on one side, away from the light emitting surface of the organic light emitting display panel, of the active layer; the shading structure comprises a first shading layer, and the channel region and the first shading layer are completely overlapped in the direction perpendicular to the plane of the substrate base plate.
Optionally, the display area further includes a first display area;
the number of the pixels in the first display region is larger than the number of the pixels in the optical member disposition region per unit area.
Optionally, in a direction perpendicular to a plane of the substrate base plate, the first light shielding layer covers the active layer.
Optionally, in a direction perpendicular to a plane of the substrate base plate, a minimum distance between an edge of the first light shielding layer and an edge of the active layer is d, where d is greater than or equal to 2 μm and less than or equal to 5 μm.
Optionally, the first light shielding layer is located on a side of the substrate away from the active layer.
Optionally, the first light shielding layer is located between the active layer and the substrate.
Optionally, the organic light emitting display panel further includes a buffer layer between the active layer and the substrate base plate;
the first shading layer is located between the buffer layer and the substrate, or the first shading layer is located in the buffer layer, or the first shading layer is located between the active layer and the buffer layer.
Optionally, a metal layer is disposed in the optical component disposing region, and a gap is formed between two adjacent metal layers in a direction perpendicular to a plane of the substrate base plate;
the shading structure further comprises a second shading layer, and the second shading layer at least covers part of the gap in the direction perpendicular to the plane of the substrate.
Optionally, the gap includes a first gap, and the width of the first gap is h, where h is greater than 0 and less than or equal to 5 μm;
in the direction perpendicular to the plane of the substrate base plate, the second light shielding layer covers the first gap.
Optionally, the first light shielding layer includes a conductive material;
the organic light emitting display panel further includes a reference voltage signal line electrically connected to the first light shielding layer.
Optionally, the first light shielding layer includes a conductive material;
the organic light emitting display panel further includes a power signal line electrically connected to the first light shielding layer.
Optionally, the light shielding structure further includes a third light shielding layer, the semi-transparent region includes a non-transparent region and a plurality of transparent regions, wherein the non-transparent region includes the first pixel and the third light shielding layer, the transparent region is non-rectangular, and at least a part of the edge of the non-transparent region is the edge of the third light shielding layer.
Optionally, the shape of the light-transmitting region includes one or more of a circle, an ellipse, a polygon, and a circle-like polygon.
Optionally, the light shielding structure includes a black resin material.
On the other hand, based on the same inventive concept, embodiments of the present invention further provide an organic light emitting display device, including:
a housing;
the organic light-emitting display panel is assembled on the shell;
the camera assembly is arranged on the shell, the camera assembly is located on one side, away from a light emitting surface of the organic light emitting display device, of the organic light emitting display panel, the camera assembly is perpendicular to the direction of the plane where the organic light emitting display panel is located, and the camera assembly is located in an optical component setting area of the organic light emitting display panel.
Optionally, the camera assembly comprises a flash and/or an infrared light sensor.
One of the above technical solutions has the following beneficial effects:
by adopting the organic light-emitting display panel provided by the embodiment of the invention, the first light-shielding layer is additionally arranged on one side of the active layer far away from the light-emitting surface of the organic light-emitting display panel, and the channel region is completely overlapped with the first light-shielding layer in the direction vertical to the plane of the substrate, when the organic light-emitting display panel is in a camera shooting mode and part of optical components in the camera assembly, such as a flash lamp, emit light with higher intensity, the first light-shielding layer can shield the light emitted by the camera assembly, the part of light is prevented from being transmitted to the channel region of the active layer, and the generation of photo-generated leakage current in the channel region is avoided, so that the influence of the photo-generated leakage current on signals transmitted in the first pixel circuit can be avoided, the first organic light-emitting element in the optical component setting region is ensured to normally emit light, and the display effect of the optical component, thereby improving the display performance of the whole display area.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an organic light emitting display panel according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view taken along line A1-A2 of FIG. 1;
FIG. 3 is another cross-sectional view taken along line A1-A2 of FIG. 1;
fig. 4 is a schematic diagram illustrating a position of a first light-shielding layer according to an embodiment of the present invention;
fig. 5 is a schematic view illustrating another arrangement position of the first light-shielding layer according to an embodiment of the disclosure;
FIG. 6 is a schematic view of another arrangement position of the first light-shielding layer according to the embodiment of the present invention;
FIG. 7 is a top view of a second exemplary embodiment of a light blocking layer film;
FIG. 8 is a cross-sectional view of a second light-shielding layer according to an embodiment of the present invention;
FIG. 9 is a schematic diagram illustrating a connection between a first light-shielding layer and a reference voltage signal line according to an embodiment of the present invention;
fig. 10 is a schematic diagram illustrating a connection between a first light-shielding layer and a power signal line according to an embodiment of the invention;
fig. 11 is a schematic structural diagram of a third light-shielding layer according to an embodiment of the disclosure;
fig. 12 is a schematic structural diagram of an organic light emitting device according to an embodiment of the present invention;
FIG. 13 is a cross-sectional view taken along line B1-B2 of FIG. 12.
[ detailed description ] embodiments
For better understanding of the technical solutions of the present invention, the following detailed descriptions of the embodiments of the present invention are provided with reference to the accompanying drawings.
It should be understood that the described embodiments are only some embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
It should be understood that although the terms first, second, and third may be used to describe the light-shielding layers in the embodiments of the present invention, the light-shielding layers should not be limited to these terms. These terms are only used to distinguish the light-shielding layers from each other. For example, the first light-shielding layer may also be referred to as a second light-shielding layer, and similarly, the second light-shielding layer may also be referred to as a first light-shielding layer, without departing from the scope of the embodiments of the present invention.
The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrases "if determined" or "if detected (a stated condition or event)" may be interpreted as "when determined" or "in response to a determination" or "when detected (a stated condition or event)" or "in response to a detection (a stated condition or event)", depending on the context.
An embodiment of the present invention provides an organic light emitting display panel, as shown in fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of the organic light emitting display panel provided by the embodiment of the present invention, and fig. 2 is a cross-sectional view taken along a direction a1-a2 in fig. 1, where the organic light emitting display panel includes: a base substrate 1; a display area 2, the display area 2 including an optical component arrangement area 3; a pixel 4, the pixel 4 comprising a first pixel 5, the first pixel 5 comprising a first pixel circuit 6, the first pixel circuit 6 comprising a first transistor 7, the first transistor 7 being located in the optical component arrangement region 3; the first transistor 7 comprises an active layer 8, a gate layer 9 and a source drain layer 10 which are sequentially stacked along a direction far away from the substrate base plate 1, wherein the active layer 8 comprises a channel region 11; the light shielding structure 12, the light shielding structure 12 is located in the optical component installation region 3, and the light shielding structure 12 is located on one side of the active layer 8 away from the light-emitting surface of the organic light-emitting display panel; the light shielding structure 12 includes a first light shielding layer 13, and the channel region 11 completely overlaps with the first light shielding layer 13 in a direction perpendicular to the plane of the substrate 1.
It is understood that, referring to fig. 2 again, the first pixel 5 further includes a first organic light emitting element 14 electrically connected to the first pixel circuit 6, the first organic light emitting element 14 includes an anode 15, a light emitting layer 16 and a cathode 17 which are sequentially stacked in a direction away from the substrate 1, and the first organic light emitting element 14 emits light under the driving of the first pixel circuit 6.
It should be noted that, for an organic light emitting display device with an image capturing function, a camera assembly 101 is further disposed in the organic light emitting display device, and the camera assembly 101 may include optical components such as a lens, a flash, an infrared light sensor, etc. in the embodiment of the present invention, the optical component disposing area 3 of the organic light emitting display panel refers to an area of the organic light emitting display panel corresponding to the area where the camera assembly 101 is disposed. When organic light emitting display panel is in the mode of making a video recording, the light of external environment incides to camera subassembly 101 in, utilize camera subassembly 101 to realize the collection to external environment image, and is optional, and meanwhile, partial optical component in camera subassembly 101 can send the light that intensity is higher, supplementary shooting, exemplarily, when external environment light is darker, the flash light in the camera subassembly 101 sends very strong light, throw light on to external environment to optimize the formation of image effect.
By adopting the organic light-emitting display panel provided by the embodiment of the invention, the first light-shielding layer 13 is additionally arranged on the side of the active layer 8 far away from the light-emitting surface of the organic light-emitting display panel, and the channel region 11 is completely overlapped with the first light-shielding layer 13 in the direction perpendicular to the plane of the substrate 1, when the organic light-emitting display panel is in a camera shooting mode and a part of optical components in the camera assembly 101, such as a flash lamp, emit light with higher intensity, the first light-shielding layer 13 can shield the light emitted by the camera assembly 101, and the part of light is prevented from being transmitted to the channel region 11 of the active layer 8, so that the generation of photo-generated leakage current in the channel region 11 is avoided, thus the influence of the photo-generated leakage current on the signal transmitted in the first pixel circuit 6 can be avoided, and the first organic light-emitting element 14 in the optical component setting region 3 is, the display effect of the optical component placement region 3 is improved, and the display performance of the entire display region 2 is improved.
Optionally, referring again to fig. 1, the display area 2 further includes a first display area 18; the number of pixels 4 in the first display region 18 per unit area is larger than the number of pixels 4 in the optical member disposition region 3. It should be noted that the first display area 18 refers to a normal display area in the display area 2 except for the optical component setting area 3, and by setting the density of the pixels 4 in the first display area 18 to be larger, a higher resolution in the first display area 18 can be ensured, and the display accuracy of the first display area 18 can be improved; in addition, the density of the pixels 4 in the optical component setting area 3 is small, the space occupied by the pixels 4 in the optical component setting area 3 can be reduced, the light transmittance of the optical component setting area 3 is improved, and when the organic light emitting display panel is in a shooting mode, more external environment light can be guaranteed to penetrate through the light transmitting area of the optical component setting area 3 and enter the camera assembly 101, so that the imaging precision is improved.
Optionally, as shown in fig. 3, fig. 3 is another cross-sectional view taken along a direction a1-a2 in fig. 1, in order to further ensure that the first light shielding layer 13 effectively shields the channel region 11 in the active layer 8 and avoid the generation of photo leakage current, in a direction perpendicular to the plane of the substrate 1, the first light shielding layer 13 may cover the entire active layer 8.
Further, referring to fig. 3 again, in the direction perpendicular to the plane of the substrate 1, the minimum distance between the edge of the first light shielding layer 13 and the edge of the active layer 8 is d, where d can satisfy: d is more than or equal to 2 mu m and less than or equal to 5 mu m. In consideration of factors in terms of process accuracy, process errors, and the like, the position where the first light-shielding layer 13 is disposed may deviate from its standard position, and therefore, setting the minimum value of d to 2 μm enables the area covered by the first light-shielding layer 13 to be larger than the area of the active layer 8, and even if the position where the first light-shielding layer 13 is disposed deviates, complete coverage of the active layer 8 can be achieved; setting the maximum value of d to 5 μm also prevents the first light-shielding layer 13 from covering an excessively large area and from affecting the light transmittance of the optical component mounting region 3.
Optionally, referring to fig. 2 and fig. 3 again, the first light shielding layer 13 is located on a side of the substrate 1 away from the active layer 8. With such an arrangement, the first light shielding layer 13 is only required to be disposed on the bottom surface of the substrate 1 by bonding or coating, and the original film structure and the forming process inside the organic light emitting display panel are not affected.
Alternatively, referring to fig. 4 to 6, the first light-shielding layer 13 may also be located between the active layer 8 and the base substrate 1. The first shading layer 13 is arranged inside the organic light-emitting display panel, on one hand, the first shading layer 13 can be prevented from being corroded by water and oxygen in the external environment, and the stability of the first shading layer 13 is improved; on the other hand, in the case of a flexible organic light emitting display panel, after the organic light emitting display panel is manufactured, the outermost glass substrate needs to be peeled off, and the first light shielding layer 13 is provided between the active layer 8 and the flexible substrate 1, so that the first light shielding layer 13 is not affected even if the glass substrate is peeled off, and the risk of the first light shielding layer 13 falling off when the organic light emitting display panel is bent can be reduced.
The organic light emitting display panel further includes a buffer layer 19 between the active layer 8 and the substrate base plate 1; when the first light shielding layer 13 is located between the active layer 8 and the substrate 1, as shown in fig. 4, fig. 4 is a schematic diagram of an arrangement position of the first light shielding layer provided in the embodiment of the present invention, and the first light shielding layer 13 is located between the buffer layer 19 and the substrate 1, or, as shown in fig. 5, fig. 5 is a schematic diagram of another arrangement position of the first light shielding layer provided in the embodiment of the present invention, and the first light shielding layer 13 is located in the buffer layer 19, and when the organic light emitting display panel receives an external force, because the first light shielding layer 13 is located inside the buffer layer 19 and is covered by the buffer layer 19, a risk that the first light shielding layer 13 falls off can be reduced, or, as shown in fig. 6, fig. 6 is a schematic diagram of another arrangement position of the first light shielding layer provided in the embodiment of the present invention, and the first light shielding layer.
Alternatively, as shown in fig. 7 and 8, fig. 7 is a top view of a position of a second light shielding layer film provided in an embodiment of the present invention, fig. 8 is a cross-sectional view of a position of a second light shielding layer film provided in an embodiment of the present invention, a metal layer 26 is disposed in the optical component disposing region 3, and a gap 20 is formed between two adjacent metal layers 26 in a direction perpendicular to a plane of the substrate 1; the light shielding structure 12 further includes a second light shielding layer 21, and in a direction perpendicular to the plane of the substrate 1, the second light shielding layer 21 at least covers a part of the gap 20.
It should be noted that the metal layer 26 in the optical component disposing area 3 may specifically include the metal layer 26 in the first pixel circuit 6, such as the gate layer 9, the source drain layer 10, and the like, and a plurality of metal routing lines electrically connected to the first pixel circuit 6, such as the Scan line Scan, the Data line Data, the reference voltage signal line Vref, and the power signal line PVDD, and the connection manner and function of each signal line and the first pixel circuit 6 are the same as those in the prior art, and are not described herein again. The gap 20 between two adjacent metal layers 26 may be specifically the gap 20 between two adjacent metal layers 26 in the first pixel circuit 6, and may also be a gap between two adjacent metal traces.
When the organic light emitting display panel is in a camera mode, when light of an external environment enters the camera assembly 101, the light is diffracted in the gap 20 between the adjacent metal layers 26, that is, in the slit formed by the adjacent metal layers 26, so that the light intensity is changed, and the photographed image is distorted. In the embodiment of the present invention, the second light shielding layer 21 is disposed, and the second light shielding layer 21 covers at least a portion of the gap 20, so that the light cannot be diffracted in the portion of the gap 20, and the problem of distortion of the photographed image caused by diffraction is solved.
It should be noted that, in the embodiment of the present invention, the first light shielding layer 13 and the second light shielding layer 21 are both located in the optical component disposing region 3, wherein the first light shielding layer 13 covers the channel region 11 in the active layer 8 in the optical component disposing region 3, the second light shielding layer 21 covers a part of the gap 20 between the metal layers 26 in the optical component disposing region 3, and the first light shielding layer 13 and the second light shielding layer 21 may be disposed in the same layer using the same material, that is, the first light shielding layer 13 and the second light shielding layer 21 are formed by the same patterning process. Optionally, the first shading layer 13 is connected to the second shading layer 21.
Further, referring to FIGS. 7 and 8 again, the gap 20 includes a first gap 22, the width of the first gap 22 is h, and h is greater than 0 and less than or equal to 5 μm; the second light-shielding layer 21 covers the first gap 22 in a direction perpendicular to the plane of the base substrate 1.
For the first gap 22 with a width in the range of 0 to 5 μm (including 5 μm), the width of the first gap 22 and the wavelength of light are close to the same order of magnitude, so that the diffraction phenomenon of light in the first gap 22 is more obvious, and therefore, by covering the first gap 22 with the second light shielding layer 21, not only the problem of image distortion caused by light diffraction can be improved to a great extent, but also the second light shielding layer 21 can only cover the gap 20 with a smaller width (for example, the first gap 22), and the light transmittance of the optical component installation area 3 is prevented from being influenced by the second light shielding layer 21.
Optionally, as shown in fig. 9, fig. 9 is a schematic diagram of a connection between a first light shielding layer and a reference voltage signal line provided in the embodiment of the present invention, where the first light shielding layer 13 includes a conductive material; the organic light emitting display panel further includes a reference voltage signal line Vref electrically connected to the first pixel circuit 6 (not shown in the figure) for providing a reference voltage signal to the first pixel circuit 6, and the reference voltage signal line Vref is electrically connected to the first light shielding layer 13. Under the influence of the load of the reference voltage signal line Vref, the longer the transmission distance of the reference voltage signal is in the process of transmitting the reference voltage signal on the reference voltage signal line Vref, the larger the voltage drop is, so that the difference of the reference voltage signals received by the first pixel circuits 6 in different areas is larger, in the embodiment of the invention, the first shading layer 13 is set as a shading layer with conductive performance, and the reference voltage signal line Vref is electrically connected with the first shading layer 13, which is equivalent to the reference voltage signal line Vref and the first shading layer 13 are connected in parallel, so that the load of the reference voltage signal line Vref is reduced, the attenuation degree of the reference voltage signal in the transmission process is reduced, the difference of the reference voltage signals received by the first pixel circuits 6 in different areas is reduced, and the display uniformity of different areas is improved.
Alternatively, as shown in fig. 10, fig. 10 is a schematic diagram illustrating a connection between a first light shielding layer and a power signal line provided in the embodiment of the invention, where the first light shielding layer 13 includes a conductive material; the organic light emitting display panel further includes a power signal line PVDD electrically connected to the first pixel circuit 6 (not shown) for supplying a power signal to the first pixel circuit 6, the power signal line PVDD being electrically connected to the first light shielding layer 13. By setting the first light-shielding layer 13 as a light-shielding layer having a conductive property and electrically connecting the power signal line PVDD to the first light-shielding layer 13, the load of the power signal line PVDD can be effectively reduced, so that the attenuation degree of the power signal transmitted on the power signal line PVDD is reduced, the difference of the power signals received by the first pixel circuits 6 in different regions is effectively reduced, and the display uniformity in different regions is improved.
Optionally, as shown in fig. 11, fig. 11 is a schematic structural diagram of a third light-shielding layer according to an embodiment of the present invention, the light-shielding structure 12 further includes a third light-shielding layer 23, and the semi-transparent region includes a non-transparent region 24 and a plurality of transparent regions 25, where the non-transparent region 24 includes the first pixel 5 and the third light-shielding layer 23, the shape of the transparent region 25 is non-rectangular, and at least a part of an edge of the non-transparent region 24 is an edge of the third light-shielding layer 23.
In the prior art, the shape of the light transmission area formed between the pixels is rectangular, when light of the external environment enters the camera assembly, the light can be diffracted in the light transmission area between the pixels, and the diffraction of the rectangular slit is obvious, so that the light intensity is greatly changed, and the shooting effect is seriously influenced. In the embodiment of the present invention, the third light shielding layer 23 is provided to shield the light, so that the shape of the light-transmitting region 25 is changed and adjusted to a non-rectangular shape with a small diffraction degree, thereby reducing the diffraction degree of the light in the external environment.
It should be noted that the first light shielding layer 13, the second light shielding layer 21, and the third light shielding layer 23 are all located in the optical component installation area 3, where the first light shielding layer 13 covers the channel region 11 in the active layer 8 in the optical component installation area 3, the second light shielding layer 21 covers the gap 20 between the partial metal layers 26 in the optical component installation area 3, the third light shielding layer 23 covers a partial region outside the first pixel 5 in the optical component installation area 3, and the first light shielding layer 13, the second light shielding layer 21, and the third light shielding layer 23 may be formed in the same layer using the same material, that is, the first light shielding layer 13, the second light shielding layer 21, and the third light shielding layer 23 are formed by the same patterning process. Optionally, the first light shielding layer 13 is connected to the third light shielding layer 23.
In addition, it should be noted that, in the embodiment of the present invention, the light shielding structure 12 is only located in the optical component disposing area 3, and the light shielding structure 12 only shields a partial area of the optical component disposing area 3, so that the first display area 18, that is, the conventional display area 2, is not affected.
Further, the shape of the light-transmitting area 25 includes one or more of a circle, an ellipse, a polygon and a circle-like polygon, and compared with a rectangular shape, the light has a smaller diffraction degree in the slit having the shape of a circle, an ellipse, a polygon and a circle-like polygon, and the light intensity change is also smaller, so that the external environment light can be accurately transmitted to the camera assembly 101, and the accuracy of the collected picture is ensured. In addition, the shapes of the plurality of transparent regions in the optical component installation region 3 may be the same or different, and may be specifically defined according to actual situations.
Optionally, the light shielding structure 12 includes a black resin material to ensure that the light shielding structure 12 has a good light shielding effect.
An organic light emitting display device according to an embodiment of the present invention is further provided, as shown in fig. 12 and 13, fig. 12 is a schematic structural view of the organic light emitting display device according to an embodiment of the present invention, and fig. 13 is a cross-sectional view taken along a direction B1-B2 of fig. 12, the organic light emitting display device including a housing 100; the organic light emitting display panel 102, the organic light emitting display panel 102 is assembled on the housing 100; the camera assembly 101 is disposed in the housing 100, the camera assembly 101 is located on a side of the organic light emitting display panel 102 away from the light emitting surface of the organic light emitting display device, and the camera assembly 101 is located in the optical component disposing area 3 of the organic light emitting display panel 102 in a direction perpendicular to a plane of the organic light emitting display panel 102.
The specific structure of the organic light emitting display panel 102 has been described in detail in the above embodiments, and is not described herein again. Of course, the organic light emitting display device shown in fig. 12 is only a schematic illustration, and the organic light emitting display device may be any electronic device having a display function, such as a mobile phone, a tablet computer, a notebook computer, an electronic book, or a television.
Since the organic light emitting display device provided in the embodiment of the present invention includes the organic light emitting display panel 102, by using the organic light emitting display device, light emitted by the camera assembly 101 can be shielded, and is prevented from being transmitted to the channel region 11 of the active layer 8 in the organic light emitting display panel 102, and a photo-generated leakage current is prevented from being generated in the channel region 11, so that the photo-generated leakage current is prevented from affecting a signal transmitted in the first pixel circuit 6, the normal light emission of the optical component setting region 3 is ensured, the display effect of the optical component setting region 3 is improved, and the display performance of the entire display region 2 is improved.
Optionally, to better perform the camera function, the camera assembly 101 includes a flash and/or an infrared light sensor.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (16)
1. An organic light emitting display panel, comprising:
a substrate base plate;
a display area including an optical component setting area;
a pixel including a first pixel circuit including a first transistor, the first transistor being located at the optical member disposition region; the first transistor comprises an active layer, a grid layer and a source drain layer which are sequentially stacked along the direction far away from the substrate, wherein the active layer comprises a channel region;
the light shielding structure is positioned in the optical component arrangement area and positioned on one side, away from the light emitting surface of the organic light emitting display panel, of the active layer; the shading structure comprises a first shading layer, and the channel region and the first shading layer are completely overlapped in the direction perpendicular to the plane of the substrate base plate.
2. The organic light-emitting display panel according to claim 1, wherein the display region further comprises a first display region;
the number of the pixels in the first display region is larger than the number of the pixels in the optical member disposition region per unit area.
3. The organic light-emitting display panel according to claim 1, wherein the first light-shielding layer covers the active layer in a direction perpendicular to a plane of the base substrate.
4. The panel of claim 3, wherein the minimum distance between the edge of the first light shielding layer and the edge of the active layer in a direction perpendicular to the plane of the substrate is d, and wherein d is greater than or equal to 2 μm and less than or equal to 5 μm.
5. The organic light-emitting display panel according to claim 1, wherein the first light-shielding layer is located on a side of the substrate facing away from the active layer.
6. The organic light-emitting display panel according to claim 1, wherein the first light-shielding layer is located between the active layer and the base substrate.
7. The organic light-emitting display panel according to claim 6, further comprising a buffer layer between the active layer and the base substrate;
the first shading layer is located between the buffer layer and the substrate, or the first shading layer is located in the buffer layer, or the first shading layer is located between the active layer and the buffer layer.
8. The organic light-emitting display panel according to claim 1, wherein metal layers are provided in the optical member disposition region, and a gap is provided between two adjacent metal layers in a direction perpendicular to a plane of the base substrate;
the shading structure further comprises a second shading layer, and the second shading layer at least covers part of the gap in the direction perpendicular to the plane of the substrate.
9. The organic light-emitting display panel of claim 8, wherein the gap comprises a first gap having a width h, 0 < h ≦ 5 μm;
in the direction perpendicular to the plane of the substrate base plate, the second light shielding layer covers the first gap.
10. The organic light-emitting display panel according to claim 1, wherein the first light-shielding layer comprises a conductive material;
the organic light emitting display panel further includes a reference voltage signal line electrically connected to the first light shielding layer.
11. The organic light-emitting display panel according to claim 1, wherein the first light-shielding layer comprises a conductive material;
the organic light emitting display panel further includes a power signal line electrically connected to the first light shielding layer.
12. The panel according to claim 1, wherein the light shielding structure further comprises a third light shielding layer, and the semi-transmissive region comprises a non-transmissive region and a plurality of transmissive regions, wherein the non-transmissive region comprises the first pixel and the third light shielding layer, the transmissive region has a non-rectangular shape, and at least a part of an edge of the non-transmissive region is an edge of the third light shielding layer.
13. The organic light-emitting display panel according to claim 12, wherein the shape of the light-transmitting region comprises one or more of a circle, an ellipse, a polygon, and a circle-like polygon.
14. The organic light-emitting display panel according to claim 1, wherein the light-shielding structure comprises a black resin material.
15. An organic light emitting display device, comprising:
a housing;
the organic light emitting display panel according to any one of claims 1 to 14, which is mounted on the case;
the camera assembly is arranged on the shell, the camera assembly is located on one side, away from a light emitting surface of the organic light emitting display device, of the organic light emitting display panel, the camera assembly is perpendicular to the direction of the plane where the organic light emitting display panel is located, and the camera assembly is located in an optical component setting area of the organic light emitting display panel.
16. The organic light emitting display device of claim 15, wherein the camera assembly comprises a flash and/or an infrared light sensor.
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| CN202310754372.2A CN116867324A (en) | 2019-09-30 | 2019-09-30 | Organic light emitting display panel and organic light emitting display device |
| CN201910939904.3A CN110660835B (en) | 2019-09-30 | 2019-09-30 | Organic light emitting display panel and organic light emitting display device |
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| CN201910939904.3A CN110660835B (en) | 2019-09-30 | 2019-09-30 | Organic light emitting display panel and organic light emitting display device |
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| CN110660835B (en) | 2023-07-14 |
| CN116867324A (en) | 2023-10-10 |
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