CN218886803U - Pixel driving circuit, display panel and display device - Google Patents
Pixel driving circuit, display panel and display device Download PDFInfo
- Publication number
- CN218886803U CN218886803U CN202222808516.1U CN202222808516U CN218886803U CN 218886803 U CN218886803 U CN 218886803U CN 202222808516 U CN202222808516 U CN 202222808516U CN 218886803 U CN218886803 U CN 218886803U
- Authority
- CN
- China
- Prior art keywords
- switch
- pixel driving
- branch
- electrically connected
- repairing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The present disclosure relates to a pixel driving circuit, a display panel and a display device, wherein the pixel driving circuit comprises at least two pixel driving branches and at least one repairing branch corresponding to the at least two pixel driving branches; at least one path of repairing branch is respectively electrically connected with at least two paths of pixel driving branches; the pixel driving circuit is connected with the control signal, and the pixel driving branch circuit and the repairing branch circuit electrically connected with the pixel driving branch circuit are controlled to be switched on and off according to the control signal.
Description
Technical Field
The present disclosure relates to the field of integrated circuit technologies, and in particular, to a pixel driving circuit, a display panel, and a display device.
Background
LED (Light-Emitting Diode) displays have many excellent characteristics with numerous potential applications. Compared with the current mainstream Display technologies such as an Organic Light-Emitting Diode (OLED) and a Liquid Crystal Display (LCD), the Display device has higher brightness, resolution and color saturation, lower power consumption, longer service life and faster response speed, and becomes a new generation Display technology.
In the prior art, the statistical result shows that the yield of the LEDs in the using process is about 99.9% and not 100%, so that the generation of dead spots still occurs, and a lot of time and cost are wasted if each backlight module is repaired. US patent No. US20200327843 discloses an LED pixel driving circuit, which mainly discloses that in order to avoid repair, one more repair branch is added in each pixel driving branch, and the repair branch includes an LED for use as a substitute.
Therefore, in the related art, the repair branch circuits which are twice as many as the repair branch circuits are needed for repairing the pixel driving branch circuits, the demand for the LEDs for repair is increased, only one row of LEDs can be repaired, and the repair limitation is large.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem or at least partially solve the technical problem, the present disclosure provides a pixel driving circuit, a display panel and a display device, which implement the repair of the pixel driving circuit, ensure the normal operation of the display panel, reduce the demand on LEDs, and save the cost.
In a first aspect, an embodiment of the present disclosure provides a pixel driving circuit, including:
the pixel driving circuit comprises at least two pixel driving branches and at least one repairing branch corresponding to the at least two pixel driving circuits;
at least one path of the repairing branch is respectively electrically connected with at least two paths of the pixel driving branches;
and the at least two pixel driving branches are connected with a control signal, and the on-off of the pixel driving branches and the repairing branches electrically connected with the pixel driving branches is controlled according to the control signal.
Optionally, the two pixel driving branches include: the pixel driving circuit comprises a first pixel driving branch and a second pixel driving branch;
one path of the repairing branch is electrically connected with the first pixel driving branch and the second pixel driving branch respectively;
the first pixel driving branch circuit is connected with a first control signal, the first pixel driving branch circuit controls the connection and disconnection between the repairing branch circuit and the first pixel driving branch circuit according to the first control signal, the second pixel driving branch circuit is connected with a second control signal, and the second pixel branch circuit controls the connection and disconnection between the repairing branch circuit and the second pixel driving branch circuit according to the second control signal.
Optionally, the first pixel driving branch includes:
the first pixel driving module, the first light-emitting lamp bead, the first switch, the third switch and the fifth switch;
the control end of the first switch, the control end of the third switch and the control end of the fifth switch are connected to the first control signal, the first end of the first light-emitting lamp bead is electrically connected with the output end of the first pixel driving module and the first end of the first switch, the second end of the first light-emitting lamp bead is electrically connected with the second end of the first switch, the first end of the third switch and the first end of the fifth switch, the second end of the third switch is connected to a negative pole potential, and the second end of the fifth switch is electrically connected with the repairing branch;
the states of the first switch and the fifth switch are the same at the same moment, and the states of the first switch and the third switch are opposite at the same moment.
Optionally, the second pixel driving branch includes:
the second pixel driving module, the second light-emitting lamp bead, the second switch, the fourth switch and the sixth switch;
the control end of the second switch, the control end of the fourth switch and the control end of the sixth switch are connected to the second control signal, the first end of the second light-emitting lamp bead is electrically connected with the output end of the pixel driving module and the first end of the second switch, the second end of the second light-emitting lamp bead is electrically connected with the second end of the second switch, the first end of the fourth switch and the first end of the sixth switch, the second end of the fourth switch is connected to a negative pole potential, and the second end of the sixth switch is electrically connected with the repairing branch circuit;
the states of the second switch and the sixth switch are the same at the same moment, and the states of the second switch and the fourth switch are opposite at the same moment.
Optionally, the repair branch comprises: and the first end of the third light-emitting lamp bead is electrically connected with the first pixel driving branch circuit and the second pixel driving branch circuit respectively, and the second end of the third light-emitting lamp bead is connected to the negative electrode potential.
Optionally, the pixel driving circuit further comprises: a first end of the first capacitor is electrically connected with the control end of the first switch module, and a second end of the first capacitor is grounded;
the first capacitor is used for storing potential information of the first control signal.
Optionally, the pixel driving circuit further comprises: a first end of the second capacitor is electrically connected with the control end of the second switch module, and a second end of the second capacitor is grounded;
the second capacitor is used for storing potential information of the second control signal.
Optionally, the pixel driving circuit further comprises: a switch control module comprising a first switch control unit and a second switch control unit;
the first end of the first switch control unit is connected to the first control signal, the second end of the first switch control unit is electrically connected to the first pixel driving branch circuit, the control end of the first switch control unit is connected to the first adjusting signal, the first end of the second switch control unit is connected to the second control signal, the second end of the second switch control unit is electrically connected to the second pixel driving branch circuit, and the control end of the second switch control unit is connected to the second adjusting signal.
In a second aspect, the present disclosure also provides a display panel including the pixel driving circuit according to the first aspect.
In a third aspect, the present disclosure also provides a display device comprising the display panel of the second aspect.
Compared with the prior art, the technical scheme provided by the disclosure has the following advantages:
the pixel driving circuit provided by the present disclosure includes at least two pixel driving branches and at least one repairing branch corresponding to the at least two pixel driving circuits; at least one path of repairing branch is respectively electrically connected with at least two paths of pixel driving branches; and the at least two pixel driving branches are connected with the control signal and control the on-off of the pixel driving branches and the repairing branches electrically connected with the pixel driving branches according to the control signal. Therefore, the at least one path of repairing branch circuit is electrically connected with the at least two paths of pixel driving branch circuits, when any branch circuit of the two paths of pixel driving branch circuits fails to emit light due to dead pixel, the repairing branch circuit electrically connected with the pixel driving branch circuit is used for emitting light, repairing of the pixel driving circuit is achieved, normal work of the display panel is guaranteed, the demand for LEDs is reduced, and the cost is saved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the embodiments or technical solutions in the prior art description will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic structural diagram of a pixel driving circuit according to an embodiment of the disclosure.
Detailed Description
In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be further described below. It should be noted that the embodiments and features of the embodiments of the present disclosure may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced in other ways than those described herein; it is to be understood that the embodiments disclosed in the specification are only a few embodiments of the present disclosure, and not all embodiments.
It is counted that the yield of the conventional LED in the using process is about 99.9% and not 100%, so that a dead spot is still generated, and a lot of time and cost are wasted if each backlight module is repaired. In the prior art, the number of LEDs is doubled for repairing the LEDs, the demand for the LEDs is increased, only one row of LEDs can be repaired, and the repairing limitation is large.
In order to solve the above problem, an embodiment of the present disclosure provides a pixel driving circuit, and fig. 1 is a schematic structural diagram of the pixel driving circuit provided in the embodiment of the present disclosure. As shown in fig. 1, a pixel driving circuit includes: at least two pixel driving branches 1 and at least one repairing branch 3 corresponding to the at least two pixel driving branches 1; at least one path of repairing branch 3 is respectively electrically connected with at least two paths of pixel driving branches 1; the at least two pixel driving branches 1 are connected with a control signal, and the on-off of the at least two pixel driving branches 1 and the repairing branch 3 electrically connected with the pixel driving branches are controlled according to the control signal; wherein, at least two pixel driving branches 1 electrically connected with at least one repairing branch 3 are adjacently arranged.
Specifically, fig. 1 exemplarily shows that two pixel driving branches 1 are electrically connected to one repairing branch 3, two adjacent pixel driving branches 1 are electrically connected to one repairing branch 3, both the two pixel driving branches 1 are connected to a control signal, and the two pixel driving branches electrically connected to the same repairing branch 3 are disposed adjacent to each other. Illustratively, when one of the two pixel driving branches 1 has a dead pixel, that is, one of the two pixel driving branches 1 cannot emit light normally, the pixel driving branch having the dead pixel may access a high-level control signal, for example, to control the pixel driving branch to be conducted with the repairing branch 3, so that the repairing branch 3 emits light. Meanwhile, the other pixel driving branch of the two pixel driving branches electrically connected with the same repairing branch 3 is connected with a low level signal to control the pixel driving branch to be disconnected with the repairing branch 3, and the other pixel driving branch is used for normally working and emitting light.
It should be noted that, the number of the pixel driving branches and the number of the repairing branches may be set according to the actual use requirement of the display device, for example, when there are four pixel driving branches and three repairing branches, the first pixel driving branch, the second pixel driving branch and the first repairing branch may be set to be electrically connected, the third pixel driving branch is electrically connected to the second repairing branch, and the fourth pixel driving branch is electrically connected to the third repairing branch. The electrical connection relationship between the pixel driving branches and the repairing branches with different numbers can be understood according to the embodiments of the present disclosure, and will not be described herein.
The embodiment of the disclosure utilizes at least one path of repairing branch 3 to be electrically connected with at least two paths of pixel driving branches 1, and utilizes the repairing branch 3 electrically connected with the same to emit light when any one of the two paths of pixel driving branches 1 has a dead pixel and cannot emit light, so that the repairing of the pixel driving circuit is realized, the normal work of a display panel is ensured, the demand on LEDs is reduced, and the cost is saved.
Alternatively, as shown in fig. 1, the two pixel driving branches include: a first pixel driving branch 11 and a second pixel driving branch 12; one path of repairing branch 3 is electrically connected with the first pixel driving branch 11 and the second pixel driving branch 12 respectively; the first pixel driving branch 11 is connected to a first control signal S1, the first pixel driving branch 11 controls the connection and disconnection between the repairing branch 3 and the first pixel driving branch 11 according to the first control signal S1, the second pixel driving branch 12 is connected to a second control signal S2, and the second pixel driving branch 12 controls the connection and disconnection between the repairing branch 3 and the second pixel driving branch 12 according to the second control signal S2.
Specifically, as shown in fig. 1, when the first pixel driving branch 11 has a dead pixel and needs to be repaired, the first control signal S1 is a high level signal, and controls the first pixel driving branch 11 to communicate with the repairing branch 3, so that the repairing branch 3 works in place of the first pixel driving branch 11. Because the probability of the defective pixel occurring in the two adjacent pixel driving branches is almost 0, when the defective pixel occurs in the first pixel driving branch 11, the second pixel driving branch 12 is in a normal working state, the second control signal S2 accessed by the second pixel driving branch 12 is a low level signal, the second pixel driving branch 12 is controlled to be disconnected from the repairing branch 3, and the second pixel driving branch 12 emits light normally.
When the first pixel driving branch 11 and the second pixel driving branch 12 both work normally, the first control signal S1 and the second control signal S2 are both low level signals, the first pixel driving branch 11 and the second pixel driving branch 12 are electrically disconnected from the repairing branch 3, the repairing branch 3 is no longer in a working state, and the first pixel driving branch 11 and the second pixel driving branch 12 realize a light emitting function.
Alternatively, as shown in fig. 1, the first pixel driving branch 11 includes: the display device comprises a first pixel driving module 111, a first light-emitting lamp bead D1, a first switch T1, a third switch T3 and a fifth switch T5; a control end of the first switch T1, a control end of the third switch T3, and a control end of the fifth switch T5 are connected to a first control signal S1, a first end of the first light-emitting lamp bead D1 is electrically connected to an output end of the first pixel driving module 111 and a first end of the first switch T1, a second end of the first light-emitting lamp bead D1 is electrically connected to a second end of the first switch T1, a first end of the third switch T3, and a first end of the fifth switch T5, a second end of the third switch T3 is connected to a negative electrode potential VSS, and a second end of the fifth switch T5 is electrically connected to the repairing branch 3;
the states of the first switch T1 and the fifth switch T5 are the same at the same time, and the states of the first switch T1 and the third switch T3 are opposite at the same time.
Specifically, as shown in fig. 1, the first switch T1 and the fifth switch T5 are, for example, n-type TFT (Thin Film Transistor) switches, and the third switch T3 is, for example, a p-type TFT switch. When the first pixel driving branch 11 works normally, and the first control signal S1 accessed by the control end of the first switch T1, the control end of the third switch T3, and the control end of the fifth switch T5 is, for example, a low level control signal, the first switch T1 and the fifth switch T5 are in an off state, the third switch T3 is in an on state, the first pixel driving module 111 is configured to provide an on voltage to the first light-emitting lamp bead D1, and a current flows through the first light-emitting lamp bead D1 to light the first light-emitting lamp bead D1.
When the first pixel driving branch 11 works abnormally, and the first control signal S1 connected to the control terminal of the first switch T1, the control terminal of the third switch T3, and the control terminal of the fifth switch T5 is, for example, a high-level control signal, the first switch T1 and the fifth switch T5 are in a conducting state, the third switch T3 is in a disconnecting state, the current flows through the first switch T1 and cannot flow through the first light-emitting lamp bead D1, the first light-emitting lamp bead D1 is in a disconnecting state, and the current flows through the first switch T1 and the fifth switch T5 to conduct the repairing branch 3, so that the repairing branch 3 works in place of the first light-emitting lamp bead D1.
Alternatively, as shown in fig. 1, the second pixel driving branch 12 includes:
a second pixel driving module 112, a second light-emitting lamp bead D2, a second switch T2, a fourth switch T4, and a sixth switch T6;
a control end of the second switch T2, a control end of the fourth switch T4, and a control end of the sixth switch T6 are connected to the second control signal S2, a first end of the second light-emitting lamp bead D2 is electrically connected to an output end of the pixel driving module and a first end of the second switch T2, a second end of the second light-emitting lamp bead D2 is electrically connected to a second end of the second switch T2, a first end of the fourth switch T4, and a first end of the sixth switch T6, a second end of the fourth switch T4 is connected to the negative electrode potential VSS, and a second end of the sixth switch T6 is electrically connected to the repairing branch 3.
The states of the second switch T2 and the sixth switch T6 are the same at the same time, and the states of the second switch T2 and the fourth switch T4 are opposite at the same time.
Specifically, as shown in fig. 1, when the second pixel driving branch 12 works normally, and the second control signal S2 accessed by the control end of the second switch T2, the control end of the fourth switch T4, and the control end of the sixth switch T6 is, for example, a low-level control signal, the second switch T2 and the sixth switch T6 are in an off state, the fourth switch T4 is in an on state, the second pixel driving module 112 is configured to provide an on voltage for the second light-emitting lamp bead D2, and a current flows through the second light-emitting lamp bead D2 to light the second light-emitting lamp bead D2.
When the second pixel driving branch 12 works abnormally, the second control signal S2 connected to the control end of the second switch T2, the control end of the fourth switch T4, and the control end of the sixth switch T6 is, for example, a high-level control signal, the second switch T2 and the sixth switch T6 are in a conducting state, the fourth switch T4 is in a disconnecting state, the current flows through the second switch T2 and cannot flow through the second light-emitting lamp bead D2, the second light-emitting lamp bead D2 is in a disconnecting state, the current flows through the second switch T2 and the fourth switch T4 to conduct the repairing branch 3, and the repairing branch 3 is enabled to work instead of the second light-emitting lamp bead D2.
Optionally, as shown in fig. 1, the repair branch 3 comprises: and a first end of the third light-emitting lamp bead D3 is respectively electrically connected with the first pixel driving branch 11 and the second pixel driving branch 12, and a second end of the third light-emitting lamp bead D3 is connected to a negative electrode potential VSS.
Specifically, as shown in fig. 1, the repairing branch 3 may include, for example, a third light-emitting lamp bead D3, a first end of the third light-emitting lamp bead D3 is electrically connected to the first pixel driving branch 11 and the second pixel driving branch 12, when the first light-emitting lamp bead D1 in the first pixel driving branch 11 cannot work normally, the first pixel driving branch 11 is electrically connected to the repairing branch 3, the second pixel driving branch 12 is electrically connected to the repairing branch 3 in a disconnected state, and the third light-emitting lamp bead D3 in the repairing branch 3 replaces the first light-emitting lamp bead D1 to emit light. When the second light-emitting lamp bead D2 in the second pixel driving branch 12 cannot work normally, the second pixel driving branch 12 is electrically connected with the repairing branch 3, the first pixel driving branch 11 is electrically connected with the repairing branch 3 in a disconnected state, and the third light-emitting lamp bead D3 in the repairing branch 3 replaces the second light-emitting lamp bead D2 to emit light.
It should be noted that, in the above embodiment, the first light-emitting lamp bead D1, the second light-emitting lamp bead D2, and the third light-emitting lamp bead D3 may all be LEDs, so as to achieve a light-emitting function.
Optionally, as shown in fig. 1, the pixel driving circuit further includes: a first end of the first capacitor C1 is electrically connected with a control end of the first switch T1, and a second end of the first capacitor C1 is grounded;
the first capacitor C1 is used for storing potential information of the first control signal S1.
Specifically, as shown in fig. 1, a first end of the first capacitor C1 is electrically connected to a control end of the first switch T1, and when the control end of the first switch T1 is connected to the first control signal S1, the first capacitor C1 is configured to store potential information of the first control signal S1, so that the control end of the first switch T1 maintains a potential of the first control signal S1. Illustratively, when the first control signal S1 is a low-level signal, and the potential of the low-level signal is-10V, for example, the potential of the control terminal of the first switch T1 can be maintained at-10V after the first capacitor C1 is fully charged.
It should be noted that, a specific capacitance value of the first capacitor C1 may be set according to an actual charging requirement, which is not limited in the embodiment of the present disclosure.
Optionally, as shown in fig. 1, the pixel driving circuit further includes: a first end of the second capacitor C2 is electrically connected with the control end of the second switch T2, and a second end of the second capacitor C2 is grounded;
the second capacitor C2 is used for storing the potential information of the second control signal S2.
Specifically, as shown in fig. 1, a first end of the second capacitor C2 is electrically connected to a control end of the second switch T2, and when the control end of the second switch T2 is connected to the second control signal S2, the second capacitor C2 is configured to store the potential information of the second control signal S2, so that the control end of the second switch T2 maintains the potential of the second control signal S2. Illustratively, when the second control signal S2 is a high-level signal, and the potential of the high-level signal is, for example, 10V, the potential of the control terminal of the second switch T2 can be maintained at 10V after the second capacitor C2 is fully charged.
Optionally, as shown in fig. 1, the pixel driving circuit further includes: a switch control module including a first switch control unit 21 and a second switch control unit 22;
a first end of the first switch control unit 21 is connected to the first control signal S1, a second end of the first switch control unit 21 is electrically connected to the first pixel driving branch 11, a control end of the first switch control unit 21 is connected to the first adjustment signal H1, a first end of the second switch control unit 22 is connected to the second control signal S2, a second end of the second switch control unit 22 is electrically connected to the second pixel driving branch 12, and a control end of the second switch control unit 22 is connected to the second adjustment signal H2.
Specifically, as shown in fig. 1, a first end of the first switch control unit 21 is connected to a first control signal S1, a control end of the first switch control unit 21 is connected to a first adjustment signal H1, when the first adjustment signal H1 is, for example, a high level signal, the first switch control unit 21 is controlled to be turned on to charge the first capacitor C1, and when the first capacitor C1 is fully charged, the first adjustment signal H1 is, for example, a low level signal, the first switch control unit 21 is controlled to be turned off.
The first end of the second switch control unit 22 is connected to the second control signal S2, the control end of the second switch control unit 22 is connected to the second adjustment signal H2, when the second adjustment signal H2 is, for example, a high level signal, the second switch control unit 22 is controlled to be turned on to charge the second capacitor C2, and when the second capacitor C2 is fully charged, the second adjustment signal H2 is, for example, a low level signal, and the second switch control unit 22 is controlled to be turned off.
The pixel driving circuit provided by the embodiment of the present disclosure utilizes at least one path of repairing branch 3 to be electrically connected with at least two paths of pixel driving branches 1, and utilizes the repairing branch 3 electrically connected with the same to emit light when any one of the two paths of pixel driving branches 1 fails to emit light due to a dead pixel, so that the repairing of the pixel driving circuit is realized, the normal operation of the display panel is ensured, the demand for LEDs is reduced, and the cost is saved.
The embodiment of the present disclosure further provides a display panel, where the display panel includes the pixel driving circuit according to the embodiment, and therefore the display panel provided by the embodiment of the present disclosure has the beneficial effects of the embodiment, and the embodiment of the present disclosure does not repeat here
The embodiment of the present disclosure also provides a display device, which includes the display panel according to the above embodiment. The display device may be, for example, a mobile phone, a computer, a projector, or the like, which is not limited in this disclosure.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present disclosure, which enable those skilled in the art to understand or practice the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A pixel driving circuit, comprising:
at least two pixel driving branches;
at least one repairing branch corresponding to the at least two pixel driving circuits;
at least one path of the repairing branch is respectively electrically connected with at least two paths of the pixel driving branches;
and the at least two pixel driving branches are connected with a control signal, and the on-off of the pixel driving branches and the repairing branches electrically connected with the pixel driving branches is controlled according to the control signal.
2. The pixel driving circuit according to claim 1, wherein the two pixel driving branches comprise: the pixel driving circuit comprises a first pixel driving branch and a second pixel driving branch;
one path of the repairing branch circuit is electrically connected with the first pixel driving branch circuit and the second pixel driving branch circuit respectively;
the first pixel driving branch circuit is connected with a first control signal, and the first pixel driving branch circuit controls the connection and disconnection between the repairing branch circuit and the first pixel driving branch circuit according to the first control signal;
and the second pixel driving branch is connected with a second control signal, and the second pixel driving branch controls the connection and disconnection between the repairing branch and the second pixel driving branch according to the second control signal.
3. The pixel driving circuit according to claim 2, wherein the first pixel driving branch comprises:
the first pixel driving module, the first light-emitting lamp bead, the first switch, the third switch and the fifth switch;
the control end of the first switch, the control end of the third switch and the control end of the fifth switch are connected to the first control signal, the first end of the first light-emitting lamp bead is electrically connected with the output end of the first pixel driving module and the first end of the first switch, the second end of the first light-emitting lamp bead is electrically connected with the second end of the first switch, the first end of the third switch and the first end of the fifth switch, the second end of the third switch is connected to a negative pole potential, and the second end of the fifth switch is electrically connected with the repairing branch;
at the same time, the states of the first switch and the fifth switch are the same, and the states of the first switch and the third switch are opposite.
4. The pixel driving circuit according to claim 2, wherein the second pixel driving branch comprises:
the second pixel driving module, a second light-emitting lamp bead, a second switch, a fourth switch and a sixth switch;
the control end of the second switch, the control end of the fourth switch and the control end of the sixth switch are connected to the second control signal, the first end of the second light-emitting lamp bead is electrically connected with the output end of the second pixel driving module and the first end of the second switch, the second end of the second light-emitting lamp bead is electrically connected with the second end of the second switch, the first end of the fourth switch and the first end of the sixth switch, the second end of the fourth switch is connected to a negative pole potential, and the second end of the sixth switch is electrically connected with the repairing branch;
at the same time, the states of the second switch and the sixth switch are the same, and the states of the second switch and the fourth switch are opposite.
5. The pixel driving circuit according to claim 1, wherein the repairing branch comprises: and the first end of the third light-emitting lamp bead is respectively electrically connected with the first pixel driving branch circuit and the second pixel driving branch circuit, and the second end of the third light-emitting lamp bead is connected to a negative electrode potential.
6. The pixel driving circuit according to claim 3, further comprising: a first end of the first capacitor is electrically connected with a control end of the first switch, and a second end of the first capacitor is grounded;
the first capacitor is used for storing potential information of the first control signal.
7. The pixel driving circuit according to claim 4, further comprising: a first end of the second capacitor is electrically connected with the control end of the second switch, and a second end of the second capacitor is grounded;
the second capacitor is used for storing potential information of the second control signal.
8. The pixel driving circuit according to claim 1, further comprising: a switch control module comprising a first switch control unit and a second switch control unit;
the first end of the first switch control unit is connected to the first control signal, the second end of the first switch control unit is electrically connected to the first pixel driving branch circuit, the control end of the first switch control unit is connected to the first adjusting signal, the first end of the second switch control unit is connected to the second control signal, the second end of the second switch control unit is electrically connected to the second pixel driving branch circuit, and the control end of the second switch control unit is connected to the second adjusting signal.
9. A display panel comprising the pixel driving circuit according to any one of claims 1 to 8.
10. A display device characterized by comprising the display panel according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222808516.1U CN218886803U (en) | 2022-10-24 | 2022-10-24 | Pixel driving circuit, display panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222808516.1U CN218886803U (en) | 2022-10-24 | 2022-10-24 | Pixel driving circuit, display panel and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218886803U true CN218886803U (en) | 2023-04-18 |
Family
ID=85941127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222808516.1U Active CN218886803U (en) | 2022-10-24 | 2022-10-24 | Pixel driving circuit, display panel and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218886803U (en) |
-
2022
- 2022-10-24 CN CN202222808516.1U patent/CN218886803U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110473496B (en) | Pixel circuit, driving method thereof, display substrate and display device | |
| CN107967896B (en) | Pixel compensation circuit | |
| US8963907B2 (en) | Pixel circuit and driving method thereof | |
| CN100561552C (en) | The fault tolerable circuit that is used for display of organic electroluminescence or illuminating device | |
| CN106531079B (en) | Pixel circuit, driving method thereof and display device | |
| CN114758619A (en) | Pixel circuit, driving method thereof, display panel and display device | |
| CN105448234B (en) | Pixel circuit and its driving method and active matrix/organic light emitting display | |
| CN106920510B (en) | Organic light emitting display and its driving method | |
| CN112669765B (en) | Breakpoint self-repairing pixel driving circuit, driving method and display device | |
| CN214541526U (en) | Pixel circuit and display device | |
| CN109637451A (en) | A kind of driving method of display panel, display panel and display device | |
| CN113450697B (en) | Display device, brightness compensation circuit and compensation method thereof | |
| CN110930949A (en) | Pixel circuit and display panel | |
| CN113241036B (en) | Pixel driving circuit, pixel driving method and display device | |
| US11783767B1 (en) | Display driving circuit, display driving method and display device | |
| CN218886803U (en) | Pixel driving circuit, display panel and display device | |
| CN1996454B (en) | Organic electroluminescent display device | |
| US6791522B2 (en) | Triodic rectifier switch | |
| CN114639347A (en) | Pixel driving circuit, driving method and display device | |
| CN214099116U (en) | Drive circuit, light-emitting substrate and display device | |
| CN216957398U (en) | Pixel driving circuit and display panel | |
| CN113450698B (en) | Display device, sub-pixel repair circuit and repair method thereof | |
| CN114203104B (en) | Pixel circuit, driving method thereof and display device | |
| CN100511365C (en) | Method and appts. of driving electroluminiescent display device | |
| CN113421521B (en) | Backlight driving circuit, driving method and backlight module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |