CN114120813A - Display panel and electronic device - Google Patents
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- CN114120813A CN114120813A CN202010873564.1A CN202010873564A CN114120813A CN 114120813 A CN114120813 A CN 114120813A CN 202010873564 A CN202010873564 A CN 202010873564A CN 114120813 A CN114120813 A CN 114120813A
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- 239000003990 capacitor Substances 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000004020 luminiscence type Methods 0.000 abstract 8
- 230000005611 electricity Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 13
- 238000005516 engineering process Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
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- 238000005859 coupling reaction Methods 0.000 description 1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
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Abstract
The application provides a display panel, display panel includes drive circuit and luminescence unit layer, drive circuit includes a plurality of sub-drive circuit, the luminescence unit layer includes a plurality of luminescence units, and every luminescence unit is used for working under sub-drive circuit's drive, the luminescence unit includes negative pole unit and positive pole unit, and is adjacent the luminescence unit negative pole unit is independent each other, the luminescence unit positive pole unit with the luminescence unit negative pole unit electricity respectively is connected to the different nodes of sub-drive circuit. The cathode units of the adjacent light emitting units are independent of each other, and the anode unit of the light emitting unit and the cathode unit of the light emitting unit are electrically connected to different nodes of the sub-driving circuit, respectively, so that the sub-driving circuit and the light emitting unit are electrically connected in a more flexible manner. The application also provides an electronic device.
Description
Technical Field
The present application relates to the field of display technologies, and in particular, to a display panel and an electronic device.
Background
Display technology has been one of the important research directions for electronic devices. The cathode of the light emitting unit of the conventional display panel is generally of a whole-surface structure, so that the connection mode between the driving circuit and the light emitting unit is limited.
Disclosure of Invention
The application discloses a display panel, it possesses more nimble connected mode.
In a first aspect, the present application provides a display panel, where the display panel includes a driving circuit and a light emitting unit layer, the driving circuit includes a plurality of sub-driving circuits, the light emitting unit layer includes a plurality of light emitting units, each of the light emitting units is configured to operate under driving of the sub-driving circuits, the light emitting unit includes a cathode unit and an anode unit, the cathode units of adjacent light emitting units are independent of each other, and the anode unit of the light emitting unit and the cathode unit of the light emitting unit are electrically connected to different nodes of the sub-driving circuits, respectively.
The cathode units of the adjacent light emitting units are independent of each other, and the anode unit of the light emitting unit and the cathode unit of the light emitting unit are electrically connected to different nodes of the sub-driving circuit, respectively, so that the sub-driving circuit and the light emitting unit are electrically connected in a more flexible manner. In a second aspect, the present application further provides an electronic device, where the electronic device includes a body and the display panel of the first aspect, and the body is used for bearing the display panel.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required 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 application, and it is obvious for a person skilled in the art to obtain other drawings based on the drawings without any inventive exercise.
Fig. 1 is a schematic top view of a display panel according to a first embodiment of the present disclosure.
Fig. 2 is a schematic sectional view taken along line I-I in fig. 1.
Fig. 3 is a schematic view of a cathode arrangement manner according to an embodiment of the present application.
Fig. 4 is a schematic diagram of an electrical connection manner of a cathode unit according to an embodiment of the present application.
Fig. 5 is a schematic structural diagram of a driving circuit according to an embodiment of the present application.
Fig. 6 is a schematic diagram of a driving circuit according to an embodiment of the present application.
Fig. 7 is a schematic structural diagram of a driving circuit according to an embodiment of the present application.
Fig. 8 is a schematic diagram of a driving circuit according to an embodiment of the present application.
Fig. 9 is a schematic structural diagram of a driving circuit according to an embodiment of the present application.
Fig. 10 is a schematic top view of an electronic device according to an embodiment of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.
Fig. 1 is a schematic top view of a display panel 1 according to a first embodiment of the present disclosure; fig. 2 is a schematic sectional view taken along line I-I in fig. 1. The display panel 1 includes a driving circuit 11 and a light emitting unit layer 12. The driving circuit 11 includes a plurality of sub-driving circuits 111, and the light emitting unit layer 12 includes a plurality of light emitting units 121, each light emitting unit 121 being configured to operate under the driving of the sub-driving circuit 111. The light emitting unit 121 includes a cathode unit 1211 and an anode unit 1212, and the cathode units 1211 of adjacent light emitting units 121 are independent of each other. The anode unit 1212 of the light emitting unit 121 and the cathode unit 1211 of the light emitting unit 121 are electrically connected to different nodes of the sub driving circuit 111, respectively.
The display panel further includes a substrate a, an insulating layer B, a plastic package C, and the like, but the substrate a, the insulating layer B, and the plastic package C are omitted in fig. 1 in order to clearly observe the positional relationship of the light emitting unit layers in fig. 1.
Specifically, each of the light emitting units 121 may be a single pixel or a plurality of pixels. When each of the light emitting units 121 is a single pixel, the cathode unit 1211 is a single cathode 121a (as shown in fig. 3), and the cathode units 1211 of the adjacent light emitting units 121 are independent from each other, which means that the cathode unit 1211 of each of the light emitting units 121 is independent from the cathode unit 1211 of the adjacent light emitting unit 121. Alternatively, the cathode units 1211 adjacent to the light emitting unit 121 may receive the same or different driving electrical signals transmitted by the sub driving circuit 111. In other possible embodiments, when each of the light emitting units 121 includes a plurality of pixels, the cathode unit 1211 of each of the light emitting units 121 is a cathode group formed by connecting cathodes 121a of the plurality of pixels of each of the light emitting units 121. The cathode units 1211 of the adjacent light emitting units 121 are independent of each other, which means that the cathode group of each light emitting unit 121 and the cathode group of the adjacent light emitting unit 121 are independent of each other. Alternatively, the cathode groups of the adjacent light emitting cells 121 may receive the same or different driving signals. Alternatively, it is also possible that each of the light emitting units 121 in the partial light emitting units 121 is a single pixel, and each of the light emitting units 121 in the other partial light emitting units 121 includes a plurality of pixels, i.e., a mixture of the former two cases. Accordingly, the cathode units 1211 of the adjacent light emitting units 121 are independent of each other, and a case where the cathode 121a of the light emitting unit 121 composed of a single pixel and the cathode group of the adjacent light emitting unit 121 composed of a plurality of pixels are independent of each other may also be included. The cathode 121a of the light emitting unit 121 composed of a single pixel and the adjacent cathode group of the light emitting unit 121 composed of a plurality of pixels may receive the same or different driving signals. In this embodiment, the electrical connection mode of the cathode unit 1211 shown in fig. 1 and 2 is merely illustrated as an example, and the present application is not limited to the arrangement mode of the cathode unit 1211.
It can be understood that, in the present embodiment, the cathode units 1211 of the adjacent light emitting units 121 are independent from each other, and the anode unit 1212 of the light emitting unit 121 and the cathode unit 1211 of the light emitting unit 121 are electrically connected to different nodes of the sub-driving circuit 111, respectively, so that the electrical connection manner between the sub-driving circuit 111 and the light emitting unit 121 is more flexible.
In one possible embodiment, the cathode units 1211 are electrically connected to the sub-driving circuits 111 in a one-to-one correspondence, and a plurality of the sub-driving circuits 111 independently drive the corresponding cathode units 1211.
It is understood that, in the present embodiment, the sub-driving circuit 111 can send different driving electrical signals to the cathode unit 1211 electrically connected to the sub-driving circuit to drive the light emitting unit 121 to operate, so as to implement local control of the driving circuit 11 on the light emitting unit 121.
In a possible embodiment, please refer to fig. 3, in which fig. 3 is a schematic diagram of a cathode arrangement manner according to an embodiment of the present application. The cathode unit 1211 includes a plurality of cathodes 121a connected to each other, and the cathodes 121a connected to each other form a single cathode unit 1211.
Specifically, in this embodiment, the patterned cathode units 1211 formed independently of each other may be formed by a plurality of connected cathodes 121a, and the driving electric signals received by the cathode units 1211 formed by the connected cathodes 121a are the same. The pattern of the cathode unit 1211 can be, but is not limited to, a polygon such as a triangle, a rectangle, etc., and it is understood that the pattern of the cathode unit 1211 is not limited by the present application.
In one possible embodiment, referring to fig. 2 again, the cathode unit 1211 is electrically connected to the sub-driving circuit 111 through the conductive via 13 penetrating the light emitting unit layer 12.
Specifically, the conductive via 13 is filled with a conductive material, such as a metal, so that the cathode unit 1211 is electrically connected to the sub-driving circuit 111, and the sub-driving circuit 111 sends a driving electrical signal to the cathode unit 1211 through the conductive via 13 to drive the light emitting unit 121 to operate.
In a possible embodiment, please refer to fig. 4, in which fig. 4 is a schematic diagram illustrating an electrical connection manner of a cathode unit according to an embodiment of the present disclosure. A conductive layer 14 is disposed in the display panel 1, and the cathode unit 1211 is electrically connected to the conductive layer 14. Specifically, the cathode unit 1211 is electrically connected to the conductive layer 14 through the conductive via 13. Alternatively, the conductive layer 14 may be a metal layer that is insulated from metal materials such as a gate electrode, a source/drain electrode, an anode electrode, a reflective layer, and a shielding layer in the driving circuit 11.
In a possible embodiment, please refer to fig. 5, and fig. 5 is a schematic structural diagram of a driving circuit according to an embodiment of the present disclosure. The sub driving circuit 111 includes a first driving transistor T1, and the conductive layer 14 is an electrode of the first driving transistor T1.
In general, the electrode of the first driving transistor T1 includes a gate g, a source s and a drain d, and the conductive layer 14 may be insulated from any one of the source s, the gate g and the drain d of the first driving transistor T1. Alternatively, the conductive layer 14 may also be the gate g, the source s, or the drain d of the first driving transistor T1.
Preferably, the conductive layer 14 is a drain d of the first driving transistor T1. Compared with the conventional driving circuit 11, the cathode unit 1211 is electrically connected to the drain d of the first driving transistor T1, and the electrical floating of the light emitting unit 121 only affects the source-drain Vds voltage of the first driving transistor T1, but does not affect the source-gate Vgs voltage of the first driving transistor T1. In a state where the first driving transistor T1 is saturated, the current flowing through the light emitting unit 121 will not be affected, thereby preventing the light emitting unit 121 from operating abnormally.
Next, one of the embodiments of the driving circuit 11 provided in the present application will be explained. In a possible embodiment, please refer to fig. 6, in which fig. 6 is a schematic diagram of a driving circuit according to an embodiment of the present disclosure. The anode unit 1212 of the light emitting unit 121 receives a first voltage signal VDD, and the cathode unit 1211 of the light emitting unit 121 receives a second voltage signal VSS through the first driving transistor T1. The light emitting unit 121 emits light under the driving of the first voltage signal VDD and the second voltage signal VSS, wherein the first voltage signal VDD is greater than the second voltage signal VSS. Specifically, the first voltage signal VDD and the second voltage signal VSS are usually provided by a power supply device other than the driving circuit 11.
Further, the sub-driving circuit 111 further includes a first switching transistor T2 and a storage capacitor C1, a gate g of the first switching transistor T2 is configured to receive the first scan signal Gn, a first controlled electrode 111a of the first switching transistor T2 is configured to receive the Data signal Data, and a second controlled electrode 111b of the first switching transistor T2 is electrically connected to the gate g of the first driving transistor T1. The second controlled electrode 111b of the first driving transistor T1 is electrically connected to the cathode unit 1211 of the light emitting unit 121, and the first controlled electrode 111a of the first driving transistor T1 is for receiving the second voltage signal VSS. One end of the storage capacitor C1 is electrically connected to the gate g of the first driving transistor T1, and the other end is electrically connected to the first controlled electrode 111a of the first driving transistor T1. The first controlled electrode 111a and the second controlled electrode 111b may be a source s or a gate g of the first driving transistor T1.
Specifically, the first scan signal Gn is used for controlling on/off of the first switching transistor T2, and when the first scan signal Gn controls the first switching transistor T2 to be turned on, the first controlled electrode 111a and the second controlled electrode 111b are turned on. The storage capacitor C1 is used for storing a voltage signal to save the voltage value of the Data signal Data. It is understood that when the first gate 111a is the source s, the second gate 111b is the drain d, and vice versa, that is, the first gate 111a and the second gate 111b can be interchanged.
It can be understood that, in this embodiment, the coupling of the driving voltage of the light emitting unit 121 can be prevented, so that the light emitting unit 121 does not generate electrical floating, and the problem of abnormal operation of the light emitting unit 121 is solved.
In a possible embodiment, please refer to fig. 7, and fig. 7 is a schematic diagram of a driving circuit structure according to an embodiment of the present disclosure. The first voltage signals VDD received by the anode units 1212 of at least two adjacent light emitting units 121 are different. Specifically, in this embodiment, the first voltage signal VDD received by the anode unit 1212 is different, so as to implement local control of the light emitting unit 121.
Further, some adjacent light emitting cells 121 form a voltage region 15, and different voltage regions 15 receive different first voltage signals VDD. It is understood that the pattern shape of the voltage region 15 may be a polygon such as a triangle, a rectangle, etc., and the present application is not limited thereto.
In a possible embodiment, please refer to fig. 8, and fig. 8 is a schematic diagram of a driving circuit according to an embodiment of the present disclosure. The sub-driving circuit 111 includes a first driving transistor T1, a second driving transistor T3, and a third driving transistor T4. The anode unit 1212 of the light emitting unit 121 receives a first voltage signal VDD through the first driving transistor T1, and the cathode unit 1211 of the light emitting unit 121 receives a second voltage signal VSS through the second driving transistor T3 and the third driving transistor T4. The light emitting unit 121 emits light under the driving of the first voltage signal VDD and the second voltage signal VSS, wherein the first voltage signal VDD is greater than the second voltage signal VSS.
Specifically, the sub-driving circuit 111 further includes a first switching transistor T2, a second switching transistor T5, a third switching transistor T6, a fourth switching transistor T7, and a storage capacitor C1. The gate g of the first switching transistor T2 is for receiving a first scan signal Gn, the first controlled pole 111a of the first switching transistor T2 is for receiving a Data signal Data, and the second controlled pole 111b of the first switching transistor T2 is electrically connected to the first controlled pole 111a of the second driving transistor T3 and the second controlled pole 111b of the third driving transistor T4. The gate g of the second switching transistor T5 is used for receiving the first scan signal Gn, the first controlled electrode 111a of the second switching transistor T5 is electrically connected to the cathode unit 1211 of the light emitting unit 121, and is electrically connected to the second controlled electrode 111b of the second driving transistor T3 and the second controlled electrode 111b of the third switching transistor T6, the second controlled electrode 111b of the second switching transistor T5 is electrically connected to the gate g of the second driving transistor T3, and is electrically connected to the first controlled electrode 111a of the fourth switching transistor T7. The gate g of the third switching transistor T6 is for receiving the second scan signal Gn-1, and the first controlled electrode 111a of the third switching transistor T6 is electrically connected to the second controlled electrode 111b of the fourth switching transistor T7 and is electrically connected to the fixed potential Vint. The gate g of the fourth switching transistor T7 is used for receiving the second scan signal Gn-1. One end of the storage capacitor C1 is used for receiving the first voltage signal VDD, and the other end is electrically connected to the gate g of the second driving transistor T3. The gate g of the first driving transistor T1 is electrically connected to the gate g of the third driving transistor T4 and is configured to receive an enable signal En, and the second controlled pole 111b of the first driving transistor T1 is configured to receive the first voltage signal VDD. The first controlled electrode 111a of the third driving transistor T4 is for receiving the second voltage signal VSS. The anode unit 1212 of the light emitting unit 121 is electrically connected to the first controlled electrode 111a of the first driving transistor T1, and the cathode unit 1211 of the light emitting unit 121 is electrically connected to the second controlled electrode 111b of the second driving transistor T3.
Specifically, in this embodiment, the first scan signal Gn is used for controlling on/off of the first switch transistor T2 and the second switch transistor T5. The second scan signal Gn-1 is used to control the on/off of the third and fourth switching transistors T6 and T7. The enable signal En is used to control the on and off of the first and third driving transistors T1 and T4.
In a possible embodiment, please refer to fig. 9, and fig. 9 is a schematic structural diagram of a driving circuit according to an embodiment of the present disclosure. The driving circuit 11 includes a source/drain layer 16, a gate layer 17, and a shielding layer 181, and the conductive layer 14 is disposed in the same layer as any one of the source/drain layer 16, the gate layer 17, or the shielding layer 181. Alternatively, the blocking layer may be separated from the gate layer by an insulating layer 18.
Specifically, as shown in fig. 9, taking the first driving transistor T1 as an example, the first controlled electrode 111a and the second controlled electrode 111b of the first driving transistor T1 are disposed on the source/drain layer 16, and the gate g of the first driving transistor T1 is disposed on the gate layer 17. The shielding layer 181 shields light incident to the channel of the first driving transistor T1, thereby improving stability of the first driving transistor T1.
Specifically, the conductive layer 14 and the source/drain layer 16, the gate layer 17, or the shielding layer 18 disposed in the same layer are insulated from each other, so as to prevent an electrode in the conductive layer 14 from being short-circuited with an electrode in the source/drain layer 16, the gate layer 17, or the shielding layer 18.
In one possible embodiment, referring to fig. 9 again, the conductive layer 14 includes a signal electrode layer 141, the signal electrode layer 141 is disposed between the source-drain layer 16 and the cathode unit 1211 of the light emitting unit 121, and the anode unit 1212 of the light emitting unit 121 and the cathode unit 1211 of the light emitting unit 121 are electrically connected to metal electrodes disposed in the signal electrode layer 141, respectively.
Specifically, the signal electrode layer 141 can be used for transmitting the electrical signals of the anode unit 1212 and the cathode unit 1211 of the light emitting unit 121 for detecting or controlling the light emitting unit 121, so as to further enhance the local control of the driving circuit 11 on the light emitting unit 121.
Fig. 10 is a schematic top view of an electronic device 2 provided in the present application, and fig. 10 is a schematic top view of the electronic device according to an embodiment of the present application. The electronic device 2 includes a body 21 and the display panel 1 as described above, the body 21 is used for carrying the display panel 1. Please refer to the above description for the display panel 1, which is not described herein again.
The principle and the implementation of the present application are explained herein by applying specific examples, and the above description of the embodiments is only used to help understand the core idea of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (17)
1. A display panel is characterized in that the display panel comprises a driving circuit and a light emitting unit layer, the driving circuit comprises a plurality of sub-driving circuits, the light emitting unit layer comprises a plurality of light emitting units, each light emitting unit is used for working under the driving of the sub-driving circuit, each light emitting unit comprises a cathode unit and an anode unit, the cathode units of the adjacent light emitting units are independent, and the anode units of the light emitting units and the cathode units of the light emitting units are respectively and electrically connected to different nodes of the sub-driving circuits.
2. The display panel according to claim 1, wherein the cathode units are electrically connected to the sub-driving circuits in a one-to-one correspondence, and a plurality of the sub-driving circuits drive the corresponding cathode units independently of each other.
3. The display panel of claim 1, wherein the cathode unit comprises a plurality of connected cathodes, the cathodes connected to each other forming a single cathode unit.
4. The display panel of claim 1, wherein the cathode unit is electrically connected to the sub driving circuit through a conductive via penetrating the light emitting unit layer.
5. The display panel according to claim 1, wherein a conductive layer is provided in the display panel, and the cathode unit is electrically connected to the conductive layer.
6. The display panel according to claim 1 or 5, wherein the sub-driving circuit includes a first driving transistor, and the conductive layer is an electrode of the first driving transistor.
7. The display panel according to claim 6, wherein the conductive layer is a drain of the first driving transistor.
8. The display panel according to any one of claims 1 to 7, wherein the anode unit of the light emitting unit receives a first voltage signal, the cathode unit of the light emitting unit receives a second voltage signal through the first driving transistor, and the light emitting unit emits light under driving of the first voltage signal and the second voltage signal, wherein the first voltage signal is greater than the second voltage signal.
9. The display panel according to claim 8, wherein the sub driving circuit further comprises a first switching transistor and a storage capacitor, a gate of the first switching transistor is configured to receive a first scan signal, a first controlled pole of the first switching transistor is configured to receive a data signal, a second controlled pole of the first switching transistor is electrically connected to the gate of the first driving transistor, a second controlled pole of the first driving transistor is electrically connected to the cathode unit of the light emitting unit, a first controlled pole of the first driving transistor is configured to receive the second voltage signal, one end of the storage capacitor is electrically connected to the gate of the first driving transistor, and the other end of the storage capacitor is electrically connected to the first controlled pole of the first driving transistor.
10. The display panel of claim 8, wherein the first voltage signals received by the anode units of at least two adjacent light emitting units are different.
11. The display panel of claim 10, wherein some adjacent ones of the light emitting cells form a voltage region, and different ones of the voltage regions receive different ones of the first voltage signals.
12. The display panel according to claim 8, wherein the sub-driving circuit comprises a first driving transistor, a second driving transistor and a third driving transistor, the anode unit of the light emitting unit receives a first voltage signal through the first driving transistor, the cathode unit of the light emitting unit receives a second voltage signal through the second driving transistor and the third driving transistor, and the light emitting unit emits light under the driving of the first voltage signal and the second voltage signal, wherein the first voltage signal is greater than the second voltage signal.
13. The display panel according to claim 12, wherein the sub driving circuit further comprises a first switching transistor, a second switching transistor, a third switching transistor, a fourth switching transistor, and a storage capacitor, a gate of the first switching transistor is configured to receive a first scan signal, a first controlled electrode of the first switching transistor is configured to receive a data signal, a second controlled electrode of the first switching transistor is electrically connected to a first controlled electrode of the second driving transistor and a second controlled electrode of the third driving transistor, a gate of the second switching transistor is configured to receive the first scan signal, a first controlled electrode of the second switching transistor is electrically connected to the cathode unit of the light emitting unit and a second controlled electrode of the second driving transistor and a second controlled electrode of the third switching transistor are electrically connected, the second controlled electrode of the second switch transistor is electrically connected to the gate of the second driving transistor and electrically connected to the first controlled electrode of the fourth switch transistor, the gate of the third switch transistor is used for receiving the second scan signal, the first controlled electrode of the third switch transistor is electrically connected to the second controlled electrode of the fourth switch transistor and electrically connected to a fixed potential, the gate of the fourth switch transistor is used for receiving the second scan signal, one end of the storage capacitor is used for receiving the first voltage signal, the other end of the storage capacitor is electrically connected to the gate of the second driving transistor, the gate of the first driving transistor is electrically connected to the gate of the third driving transistor and is used for receiving the enable signal, the second controlled electrode of the first driving transistor is used for receiving the first voltage signal, and the first controlled electrode of the third driving transistor is used for receiving the second voltage signal, the anode unit of the light emitting unit is electrically connected with a first controlled electrode of the first driving transistor, and the cathode unit of the light emitting unit is electrically connected with a second controlled electrode of the second driving transistor.
14. The display panel according to any one of claims 1 to 7, wherein the driving circuit includes a source-drain layer, a gate layer, and a shielding layer, and the conductive layer is provided in the same layer as any one of the source-drain layer, the gate layer, and the shielding layer.
15. The display panel according to claim 14, wherein the conductive layer is provided to be insulated from the source/drain layer, the gate layer, or the shielding layer provided on the same layer.
16. The display panel according to claim 14, wherein the conductive layer includes a signal electrode layer, the signal electrode layer is disposed between the source-drain layer and the cathode unit of the light emitting unit, and the anode unit of the light emitting unit and the cathode unit of the light emitting unit are electrically connected to metal electrodes disposed in the signal electrode layer, respectively.
17. An electronic device, comprising a body and a display panel according to any one of claims 1 to 16, wherein the body is used for carrying the display panel.
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CN110164942A (en) * | 2019-05-31 | 2019-08-23 | 江苏集萃有机光电技术研究所有限公司 | A kind of display panel and preparation method thereof, display device |
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Application publication date: 20220301 |