CN108470758B - Organic light emitting display panel and display device - Google Patents
Organic light emitting display panel and 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
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/131—Interconnections, e.g. wiring lines or terminals
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- 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 invention discloses an organic light emitting display panel and a display device. The organic light emitting display panel includes: the array substrate comprises a substrate, a first metal layer, a second metal layer and a third metal layer, wherein the first metal layer, the second metal layer and the third metal layer are used for arranging pixel circuits; the organic light-emitting display device layer is arranged on one side, far away from the substrate, of the third metal layer; the light sensing fingerprint identification array is arranged on one side, far away from the second metal layer, of the first metal layer, the display area of the organic light-emitting display panel comprises a fingerprint identification area, and the light sensing fingerprint identification array is arranged in the fingerprint identification area; the first metal layer comprises a first routing wire extending in the first direction, the second metal layer comprises a second routing wire extending in the first direction, and at least part of the orthographic projection of the second routing wire on the substrate is overlapped with the orthographic projection of the first routing wire on the substrate at least in the fingerprint identification area. By the method and the device, the fingerprint identification precision of the fingerprint area on the organic light-emitting display panel can be improved.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to an organic light emitting display panel and a display device.
Background
Fingerprints are inherent to everyone, and with the development of science and technology, a variety of display devices with fingerprint identification functions, such as mobile phones, tablet computers, intelligent wearable devices and the like, appear in the market. Before a user operates the display device with the fingerprint identification function, the user can carry out authority verification only by touching the display device with a finger, and the authority verification process is simplified.
In the existing display device based on the optical fingerprint identification technology, a fingerprint identification sensor is formed based on a semiconductor device, fingerprint detection is realized by utilizing the characteristic that the semiconductor device can generate leakage current when being irradiated by light, specifically, after light generated by a fingerprint identification light source is reflected on the surface of a finger touching the display device, the reflected light irradiates the fingerprint identification sensor, and the fingerprint identification sensor detects the light intensity caused by the fluctuation of fingerprint valleys, thereby generating a fingerprint spectrum.
In addition, the organic light emitting display panel has been widely used in various types of display devices due to its characteristics of being lighter and thinner, having a larger viewing angle, and being capable of significantly saving power, compared to the liquid crystal display panel. Therefore, it is an urgent problem to be solved in the art to provide an organic light emitting display panel and a display device to improve the accuracy of fingerprint recognition on the organic light emitting display panel.
Disclosure of Invention
In view of this, the present invention provides an organic light emitting display panel and a display device, which solve the technical problem of low fingerprint identification accuracy caused by a small amount of fingerprint signals received by a fingerprint identification sensor in the prior art.
In one aspect, the present invention provides an organic light emitting display panel.
The organic light emitting display panel includes: the array substrate comprises a substrate, a first metal layer arranged on one side of the substrate, a second metal layer arranged on one side of the first metal layer far away from the substrate, and a third metal layer arranged on one side of the second metal layer far away from the substrate, wherein the first metal layer, the second metal layer and the third metal layer are used for arranging pixel circuits; the organic light-emitting display device layer is arranged on one side, far away from the substrate, of the third metal layer; the organic light-emitting display panel comprises a display area and a non-display area surrounding the display area, the display area comprises a fingerprint identification area, and the light sensing fingerprint identification array is arranged in the fingerprint identification area; the first metal layer comprises a first trace extending in a first direction, the second metal layer comprises a second trace extending in the first direction, and at least part of an orthographic projection of the second trace on the substrate overlaps with an orthographic projection of the first trace on the substrate at least in the fingerprint identification area.
In another aspect, the present invention provides a display device.
The display device comprises any one organic light-emitting display panel provided by the invention.
Compared with the prior art, the organic light-emitting display panel and the display device have the following beneficial effects that:
the application provides an organic light emitting display panel, with the syntropy extend in the array substrate and be located the line of walking of first metal level and second metal level respectively, set up to overlapping in the direction of the organic light emitting display panel of perpendicular to, can increase array substrate's luminousness to increase the light of fingerprint identification sensor is returned in the interface reflection of touch main part and display device apron, also increase fingerprint identification sensor's fingerprint identification semaphore promptly, promote organic light emitting display panel's fingerprint identification precision.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic diagram of a film structure of an organic light emitting display panel according to the prior art;
fig. 2 is a schematic diagram of a film structure of an organic light emitting display panel according to an embodiment of the present disclosure;
fig. 3 is a schematic top view illustrating an organic light emitting display panel according to an embodiment of the present disclosure;
fig. 4 is a schematic diagram of a pixel circuit of an organic light emitting display panel according to an embodiment of the present disclosure;
fig. 5 is a schematic diagram illustrating overlapping of wirings in a fingerprint identification area of an organic light emitting display panel according to an embodiment of the present application;
fig. 6 is a schematic cross-sectional view of a portion of the organic light emitting display panel according to the embodiment of the disclosure taken along a cut line AA in fig. 5;
fig. 7 is a schematic diagram illustrating overlapping of traces in a fingerprint identification area of another organic light emitting display panel according to an embodiment of the present application;
fig. 8 is a schematic diagram illustrating overlapping of traces in a fingerprint identification area of another organic light emitting display panel according to an embodiment of the present application.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In order to improve the fingerprint recognition accuracy of the organic light emitting display panel, the inventors conducted the following studies: fig. 1 is a schematic diagram illustrating a film structure of a display device according to the related art, and as shown in fig. 1, the display device includes a display panel 10', a cover plate 20' on one side of the display panel 10', and a fingerprint recognition device 30' on the other side of the display panel 10', wherein a touch subject TB ' is in contact with a surface of the cover plate 20 '. The fingerprint recognition device 30 'comprises a plurality of fingerprint recognition sensors FS'. The display panel 10' includes an array substrate 11', a light-emitting functional layer 12', an encapsulation layer 13', and a polarizer 14', the light-emitting functional layer 12' includes a plurality of light-emitting pixels P ', in one embodiment, the light-emitting pixels P ' provide fingerprint identification light, or, in another embodiment, an external light source of the display device serves as a fingerprint identification light source, and after any light source generates the fingerprint identification light, the fingerprint identification light is incident to an interface between the touch body TB ' and the cover plate 20', is reflected at the interface, and is reflected back to the fingerprint identification sensor FS '.
In fig. 1, the light emitting pixel P ' provides a fingerprint identification light L1', which is reflected to form a reflected light L2', and the reflected light L2' sequentially passes through the cover plate 20' and the display panel 10' and then enters the fingerprint identification sensor FS '. The array substrate 11' of the display panel 10' includes a plurality of opaque metal layers such as metal layers, and the opaque metal layers occupy most of the area of the array substrate 11', so that the transmittance of the array substrate 11' is low, and therefore, the amount of the fingerprint signal is small because the reflected light incident on the fingerprint sensor FS ' is small.
Based on the research, the application provides an organic light emitting display panel and a display device including the same, and the fingerprint signal amount is increased by improving the transmittance of the array substrate, so that the fingerprint identification precision of the display device with the organic light emitting display panel is improved. Specific examples of the organic light emitting display panel and the display device proposed in the present application are described in detail below.
In an embodiment, fig. 2 is a schematic view of a film structure of an organic light emitting display panel according to an embodiment of the present disclosure, and as shown in fig. 2, the organic light emitting display panel includes an array substrate 11, an organic light emitting display device layer 12, and a light sensing fingerprint identification array 30.
The array substrate 11 includes a substrate 111, a first metal layer 112 disposed on one side of the substrate 111, a second metal layer 113 disposed on one side of the first metal layer 112 away from the substrate 111, and a third metal layer 114 disposed on one side of the second metal layer 113 away from the substrate 111, wherein insulating layers (not shown) are disposed between the first metal layer 112, the second metal layer 113, and the third metal layer 114.
The organic light emitting display device layer 12 is disposed on a side of the third metal layer 114 away from the substrate 111, and the organic light emitting display device layer 12 includes a plurality of light emitting pixels P, each of which includes an anode, a cathode, and an organic light emitting material disposed between the anode and the cathode. In one embodiment, the organic light emitting display panel further includes an encapsulation layer 13 encapsulating the organic light emitting display device layer 12, in the flexible organic light emitting display panel, the encapsulation layer 13 is encapsulated by a flexible film, in the rigid organic light emitting display panel, the encapsulation layer 13 is an encapsulation cover plate, and the encapsulation cover plate is connected to the array substrate 11 by an encapsulation adhesive.
The light-sensing fingerprint identification array 30 is disposed on a side of the first metal layer 112 away from the second metal layer 113, and specifically, may be integrated in the array substrate 11, for example, disposed between the substrate 111 and the first metal layer 112, or, for example, disposed on a surface of the substrate 111 away from the first metal layer 112; or may be externally hung on a side of the substrate 111 away from the first metal layer 112, for example, in an embodiment, the display panel further includes a fingerprint identification substrate, the light-sensing fingerprint identification array 30 is disposed on the fingerprint identification substrate, and then the fingerprint identification substrate is disposed on a side of the substrate 111 away from the first metal layer 112, during the manufacturing process, the light-sensing fingerprint identification array 30 is formed on the fingerprint identification substrate, and then the display panel is integrally externally hung. The light-sensitive fingerprint identification array 30 shown in fig. 2 is disposed on the surface of the substrate 111 on the side away from the first metal layer 112. The light sensing fingerprint identification array 30 includes a plurality of fingerprint identification sensors FS.
After the light generated by the fingerprint identification light source is incident to the interface where the touch main body is in contact with the display device, the light is reflected at the interface and reflected back to the fingerprint identification sensor FS, and the fingerprint identification sensor FS performs fingerprint identification according to the reflected light. In one embodiment, the light generated by the organic light emitting display device layer 12 is multiplexed as a fingerprint identification light source in the fingerprint identification stage, so that the overall thickness of the organic light emitting display panel can be reduced. In another embodiment, the fingerprint identification light source is externally hung on the organic light emitting display panel, and optionally, the fingerprint identification light source is disposed on a side of the substrate 111 away from the first metal layer 112, so that the light source can be controlled independently.
Fig. 3 is a schematic top view illustrating an organic light emitting display panel according to an embodiment of the present disclosure, as shown in fig. 3, the organic light emitting display panel includes a display area AA and a non-display area BA surrounding the display area AA, the display area AA includes a fingerprint identification area FA, and a light sensing fingerprint identification array 30 (not shown in fig. 3) is disposed in the fingerprint identification area FA. The size of the fingerprint identification area FA may be a part of the display area AA, and the shape may be set arbitrarily, for example, the fingerprint identification area FA shown in fig. 3 is a rectangle, and may also be the whole display area AA, and the size and the shape of the fingerprint identification area FA are not limited in this application. It should be noted that the fingerprint area FA is not physically delimited within the display area AA, but only logically defines an area where fingerprint identification is possible as the fingerprint area.
Fig. 4 is a schematic diagram of a pixel circuit of an organic light emitting display panel according to an embodiment of the present disclosure, and as shown in fig. 4, the pixel circuit includes a capacitor C, a plurality of thin film transistors T, a connecting line between the capacitor C and the thin film transistors T, a connecting line between the thin film transistors T and the thin film transistors T, and input ends, where each input end is connected to a signal line to receive a control signal to control display brightness of a light emitting pixel. Specifically, the signal lines include a reference voltage line V, a first scan line S1, a second scan line S2, a control signal line E, a first power supply line PVDD, a second power supply line PVEE, and a data line D. The reference voltage line V is used for providing a reference signal, the first scan line S1 and the second scan line S2 are used for providing scan signals of two adjacent timings, the control signal line E is used for providing a control signal, the first power line PVDD and the second power line PVEE are both used for providing a power signal, and the data line D is used for providing a data signal.
The above-described respective portions constituting the pixel circuit are realized by the wirings of the first metal layer 112, the second metal layer 113, and the third metal layer 114. In one embodiment, the first metal layer 112 of the organic light emitting display panel is used to dispose the first scan line S1, the second scan line S2, the control signal line E, and the gate electrode of the thin film transistor T; the second metal layer 113 is used to set one plate of the capacitor C and the reference voltage line V; the third metal layer 114 is used to dispose the first power line PVDD, the second power line PVEE, and the data line D. It should be noted that fig. 4 is only used to schematically illustrate the principle structure of the pixel circuit, and does not limit the pixel circuit in the present application, and the pixel circuit in the present application may adopt any pixel circuit in the prior art, which is not described herein again.
Fig. 5 is a schematic diagram illustrating overlapping of traces in a fingerprint identification area of an organic light emitting display panel according to an embodiment of the present application, where fig. 5 illustrates a case where the traces in an area Q in fig. 3 are overlapped, and with reference to fig. 2 to 5, a first metal layer 112 includes a first trace L1 extending in a first direction x, and a second metal layer 113 includes a second trace L2 extending in the first direction x, where the first trace L1 and the second trace L2 are two traces in a pixel circuit, and at least in the fingerprint identification area FA, at least a part of a forward projection of the second trace L2 on the substrate 111 overlaps a forward projection of the first trace L1 on the substrate 111, that is, in a direction z perpendicular to the organic light emitting display panel, the first trace L1 and the second trace L2 at least partially overlap in the fingerprint identification area FA. Specifically, in the non-fingerprint identification area NFA included in the display area AA, an orthographic projection of the first trace L1 on the substrate base plate 111 and an orthographic projection of the second trace L2 on the substrate base plate 111 may overlap, so that the entire wiring manner of the substrate base plate 111 is consistent, which facilitates the wiring and the detection after the wiring, or, in another embodiment, in the non-fingerprint identification area NFA, an orthographic projection of the first trace L1 on the substrate base plate 111 and an orthographic projection of the second trace L2 on the substrate base plate 111 do not overlap, and in the non-fingerprint identification area NFA, an increase in parasitic capacitance due to the overlapping of the first trace L1 and the second axis L2 may be reduced.
In the organic light emitting display panel provided in this embodiment, the first trace L1 located on the first metal layer 112 and the second trace L2 located on the second metal layer 113, which extend in the same direction, are at least partially overlapped in the fingerprint identification area FA, and at least part of the orthographic projection of the first trace L1 and the second trace L2 located on the second metal layer 113 are arranged to overlap, where fig. 6 is a schematic cross-sectional view of a part of the film layer of the organic light emitting display panel according to the embodiment of the present application, which is obtained along the tangent line AA in fig. 5, as shown in fig. 5 to 6, based on the overlapping manner of the first trace L1 and the second trace L2 in the present application, compared with the non-overlapping manner of the first trace L1 and the second trace L2, the light P incident to the fingerprint identification sensor FS can be increased, that is.
In addition, the data line D is used for providing a voltage signal for displaying gray scales to the light emitting pixel P, and when the signal on the data line D is interfered, the display effect is seriously affected. For the data line D arranged on the third metal layer 113, the position of the first routing line L1 is moved in the present application to overlap with the second routing line L2, so that the data line D arranged on the third metal layer 113 is not affected basically, and the display effect of the organic light emitting display panel is less affected.
To the organic light emitting display panel that this application provided, with the line of walking that extends in the same direction and be located first metal level and second metal level in the array substrate, set up to overlapping in the direction of the organic light emitting display panel of perpendicular to, can increase array substrate's luminousness to increase the light of reflecting back the fingerprint identification sensor via the interface of touch main part and display device apron, also increase the fingerprint identification semaphore of fingerprint identification sensor, promote organic light emitting display panel's fingerprint identification precision.
In an embodiment, fig. 7 is a schematic diagram illustrating overlapping of traces in a fingerprint identification area of another organic light emitting display panel according to the embodiment of the present application, as shown in fig. 7, at least in the fingerprint identification area FA, all orthographic projections of the second traces L2 on the substrate 111 overlap with the orthographic projection of the first traces L1 on the substrate 111.
Adopt the organic light emitting display panel that this embodiment provided, further increase the transmissivity of array substrate in the fingerprint identification district to can further increase the light that reflects back the fingerprint identification sensor via the interface of touch main part and display device apron, also further increase the fingerprint identification semaphore of fingerprint identification sensor, further promote organic light emitting display panel's fingerprint identification precision.
In an embodiment, optionally, with continued reference to fig. 4 and fig. 5, the first trace L1 is one of the scan lines of the pixel circuit, where the scan lines may include a first scan line S1, a second scan line S2 and a control signal line E, and the second trace L2 is a reference voltage line V of the pixel circuit. The scanning lines and the reference voltage lines V in the pixel circuit extend in the same direction, one of the scanning lines is used as a first wiring line L1, and the reference voltage line V is used as a second wiring line L2, so that the transmittance of the array substrate in the fingerprint identification area can be increased.
In an embodiment, optionally, fig. 8 is a schematic diagram illustrating an overlap of traces in a fingerprint identification area of another organic light emitting display panel according to an embodiment of the present application, as shown in fig. 8, scan lines of a pixel circuit include a first scan line S1, a second scan line S2, and a control signal line E, all of which extend in a first direction x, where in a second direction y, the first scan line S1, the second scan line S2, and the control signal line E are sequentially arranged, the first direction x is perpendicular to the second direction y, the first trace L1 is a first scan line S1, and the reference voltage line V is a second trace L2. As can be seen from fig. 8, the first scanning line S1 is closest to the reference voltage line V in the second direction y, the first scanning line S1 and the reference voltage line V are arranged to overlap each other, and the influence on other lines is small, and at the same time, the first scanning line S1 and the reference voltage line V extend entirely along the first direction x as a whole, and the arrangement of the first scanning line S1 and the reference voltage line V to overlap each other can greatly improve the light transmittance of the array substrate.
In an embodiment, optionally, with continued reference to fig. 4, fig. 5, and fig. 8, the second metal layer 113 further includes a capacitor plate C1, where the capacitor plate C1 is a side plate of a capacitor C in the pixel circuit, the first trace L1 is a scan line of the pixel circuit, and the second trace L2 is a trace connected to the capacitor plate C1 in the pixel circuit. The scanning lines in the pixel circuit and the wires connected with the capacitor plate C1 extend in the same direction, one of the scanning lines is used as a first wire L1, and the wire connected with the capacitor plate C1 is used as a second wire L2, so that the transmittance of the array substrate in the fingerprint identification area can be increased.
In an embodiment, optionally, as shown in fig. 8, the scan lines of the pixel circuit include a first scan line S1, a second scan line S2, and a control signal line E, all of which extend in a first direction x, where in a second direction y, the first scan line S1, the second scan line S2, and the control signal line E are sequentially arranged, the first direction x is perpendicular to the second direction y, the first trace L1 is the control signal line E, and the trace connected to the capacitor plate C1 is a second trace L2. As can be seen from fig. 8, the control signal line E and the trace connected to the capacitor plate C1 are closest to each other in the second direction y, the control signal line E and the trace connected to the capacitor plate C1 are overlapped, and the influence on other lines is small, meanwhile, signals transmitted by the control signal line E and the trace connected to the capacitor plate C1 are not written into the light-emitting pixel, and the influence on the display gray scale of the light-emitting pixel due to the parasitic capacitance generated after the control signal line E and the trace are overlapped is small.
The above embodiments of the organic light emitting display panel according to the embodiments of the present invention also provide a display device, which includes the organic light emitting display panel according to any of the above embodiments, and has corresponding technical features and technical effects, which are not described herein again.
As can be seen from the above embodiments, the organic light emitting display panel and the display device of the present invention achieve the following advantages:
the application provides an organic light emitting display panel, with the syntropy extend in the array substrate and lie in the line of walking of first metal level and second metal level, set up to overlapping in the direction of the organic light emitting display panel of perpendicular to, can increase array substrate's luminousness to increase the light of reflecting back the fingerprint identification sensor via the interface of touch main part and display device apron, also increase the fingerprint identification semaphore of fingerprint identification sensor, promote organic light emitting display panel's fingerprint identification precision.
Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (8)
1. An organic light emitting display panel, comprising:
the array substrate comprises a substrate, a first metal layer arranged on one side of the substrate, a second metal layer arranged on one side of the first metal layer far away from the substrate, and a third metal layer arranged on one side of the second metal layer far away from the substrate, wherein the first metal layer, the second metal layer and the third metal layer are used for arranging pixel circuits;
the organic light-emitting display device layer is arranged on one side, far away from the substrate, of the third metal layer;
a light-sensitive fingerprint identification array arranged on one side of the first metal layer far away from the second metal layer,
the organic light emitting display panel comprises a display area and a non-display area surrounding the display area, the display area comprises a fingerprint identification area and a non-fingerprint identification area, and the light sensation fingerprint identification array is arranged in the fingerprint identification area;
the first metal layer comprises a first trace extending in a first direction, the second metal layer comprises a second trace extending in the first direction, and an orthographic projection of the second trace on the substrate is overlapped with an orthographic projection of the first trace on the substrate in the fingerprint identification area; in the non-fingerprint identification area, the orthographic projection of the first routing wire on the substrate base plate is not overlapped with the orthographic projection of the second routing wire on the substrate base plate; the first routing wire is a scanning wire of the pixel circuit, and the second routing wire is a reference voltage wire of the pixel circuit.
2. The organic light-emitting display panel according to claim 1,
at least in the fingerprint identification area, all orthographic projections of the second routing wires on the substrate are overlapped with the orthographic projections of the first routing wires on the substrate.
3. The organic light-emitting display panel according to claim 1,
the scanning lines of the pixel circuit comprise a first scanning line, a second scanning line and a control signal line, and the first routing line is the first scanning line.
4. The organic light-emitting display panel according to claim 1,
the second metal layer further comprises a capacitor plate, wherein the capacitor plate is a side plate of one capacitor in the pixel circuit;
the second wire is connected with the capacitor plate in the pixel circuit.
5. The organic light-emitting display panel according to claim 1,
light generated by the organic light-emitting display device layer is multiplexed into a fingerprint identification light source in a fingerprint identification stage.
6. The organic light-emitting display panel according to claim 1, wherein the display panel further comprises:
the fingerprint identification light source is arranged on one side, far away from the first metal layer, of the substrate base plate.
7. The organic light-emitting display panel according to claim 1,
the display panel further includes: the light-sensitive fingerprint identification array is arranged on the fingerprint identification substrate;
the fingerprint identification substrate is arranged on one side, far away from the first metal layer, of the substrate.
8. A display device characterized by comprising the organic light-emitting display panel according to any one of claims 1 to 7.
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| CN201810392575.0A CN108470758B (en) | 2018-04-27 | 2018-04-27 | Organic light emitting display panel and display device |
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| CN201810392575.0A CN108470758B (en) | 2018-04-27 | 2018-04-27 | Organic light emitting display panel and display device |
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| CN113782573B (en) * | 2019-04-11 | 2024-04-05 | Oppo广东移动通信有限公司 | Display screen assembly and electronic equipment |
| CN110070801B (en) * | 2019-04-30 | 2023-04-18 | 武汉天马微电子有限公司 | Display panel and display device |
| CN112563303B (en) * | 2019-09-25 | 2023-02-03 | 上海和辉光电股份有限公司 | Display panel and display device |
| CN114944113A (en) * | 2019-12-02 | 2022-08-26 | 武汉天马微电子有限公司 | Display panel and display device |
| CN112507828A (en) * | 2020-11-30 | 2021-03-16 | 京东方科技集团股份有限公司 | Optical fingerprint identification structure, manufacturing method thereof and display device |
| CN112613465B (en) * | 2020-12-30 | 2023-04-18 | 湖北长江新型显示产业创新中心有限公司 | Display panel, manufacturing method and display device |
| CN115101565A (en) | 2022-06-27 | 2022-09-23 | 武汉天马微电子有限公司 | Display panel and display device |
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| TWI584202B (en) * | 2015-12-31 | 2017-05-21 | 速博思股份有限公司 | Fingerprint identification apparatus |
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| CN107133613A (en) * | 2017-06-06 | 2017-09-05 | 上海天马微电子有限公司 | A kind of display panel and display device |
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