CN116189616A - Display panel, driving method thereof and display device - Google Patents
Display panel, driving method thereof and display device Download PDFInfo
- Publication number
- CN116189616A CN116189616A CN202211551410.6A CN202211551410A CN116189616A CN 116189616 A CN116189616 A CN 116189616A CN 202211551410 A CN202211551410 A CN 202211551410A CN 116189616 A CN116189616 A CN 116189616A
- Authority
- CN
- China
- Prior art keywords
- light
- light emitting
- emitting elements
- display panel
- control
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000010409 thin film Substances 0.000 claims description 14
- 239000013078 crystal Substances 0.000 claims 1
- 235000019557 luminance Nutrition 0.000 description 28
- 238000010586 diagram Methods 0.000 description 20
- 230000000694 effects Effects 0.000 description 6
- 239000003086 colorant Substances 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 241001270131 Agaricus moelleri Species 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000004984 smart glass Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Electroluminescent Light Sources (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Control Of El Displays (AREA)
Abstract
The invention discloses a display panel, a driving method thereof and a display device, wherein the display panel comprises a first pixel circuit, and the first pixel circuit comprises a driving transistor, a light-emitting control circuit and at least two first light-emitting elements; the light-emitting control circuit is arranged between the driving transistor and the first light-emitting element in series; the light-emitting control circuit is used for controlling the first light-emitting elements to emit light when the target display brightness value of the first light-emitting elements is smaller than or equal to a first preset value, and controlling the second light-emitting elements to emit light when the target display brightness value of the first light-emitting elements is larger than the first preset value; the second number is greater than the first number. The scheme provided by the invention solves the problem of high power consumption of the light-emitting element in the display panel.
Description
Technical Field
The embodiment of the invention relates to the technical field of display, in particular to a display panel, a driving method thereof and a display device.
Background
With the development of display technology, the requirements of people on the display technology are also increasing. The organic light emitting diode is used as an active light emitting element, has self-luminous display characteristics, has the characteristics of wide viewing angle, high brightness, high contrast, small volume and high resolution, can be applied to extreme environments such as high temperature or radiation, and more manufacturers have planned the organic light emitting diode as a main light emitting element of a new generation display technology.
However, with the increase of display requirements, the power consumption of the light emitting element in the existing display panel is high, which in turn results in an increase of the power consumption of the entire display device.
Disclosure of Invention
The invention provides a display panel, a driving method thereof and a display device, which are used for solving the problem that the overall power consumption is high due to the fact that the power consumption of a light-emitting element in the display panel is large.
In a first aspect, an embodiment of the present invention provides a display panel, including a first pixel circuit including a driving transistor, a light emission control circuit, and at least two first light emitting elements;
the light-emitting control circuit is arranged in series between the driving transistor and the first light-emitting element;
the light-emitting control circuit is used for controlling a first number of the first light-emitting elements to emit light when the target display brightness value of the first light-emitting elements is smaller than or equal to a first preset value, and is used for controlling a second number of the first light-emitting elements to emit light when the target display brightness value of the first light-emitting elements is larger than the first preset value; the second number is greater than the first number.
In a second aspect, an embodiment of the present invention further provides a driving method of a display panel, applied to the display panel in the first aspect, where the driving method includes:
obtaining a target display brightness value of the first light-emitting element;
in the light emitting stage, when the target display brightness value of the first light emitting element is smaller than or equal to a first preset value, the light emitting control circuit controls a first number of the first light emitting elements to emit light, and when the target display brightness value of the first light emitting element is larger than the first preset value, the light emitting control circuit controls a second number of the first light emitting elements to emit light, wherein the second number is larger than the first number.
In a third aspect, an embodiment of the present invention further provides a display apparatus, including the display panel in the first aspect.
According to the technical scheme, the first pixel circuit comprises the driving transistor, the light-emitting control circuit and at least two first light-emitting elements, wherein the light-emitting control circuit is arranged between the driving transistor and the first light-emitting elements in series, so that the light-emitting control circuit can control the first light-emitting elements with different numbers to emit light, and the requirements of different display brightness can be met. When the display brightness value of the first light-emitting elements is smaller than or equal to a first preset value, the light-emitting control circuit can control the first light-emitting elements to emit light, namely part of the first light-emitting elements emit light, so that the power consumption can be saved while the light-emitting brightness requirement is met. When the display brightness value of the first light-emitting element is larger than a first preset value, the light-emitting control circuit can control the second number of the first light-emitting elements to emit light, wherein the second number is larger than the first number, so that the accurate light-emitting brightness of the display panel is ensured, and the display effect is improved.
It should be understood that the description in this section is not intended to identify key or critical features of the embodiments of the invention or to delineate the scope of the invention. Other features of the present invention will become apparent from the description that follows.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a first pixel circuit according to an embodiment of the present invention;
fig. 3 is a timing chart of a first light emitting device according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of another first pixel circuit according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a first pixel circuit according to an embodiment of the present invention;
FIG. 6 is a driving timing diagram of a first pixel circuit according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a first pixel circuit according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a first pixel circuit according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of a second pixel circuit according to an embodiment of the present invention;
FIG. 11 is a flowchart of a driving method of a display panel according to an embodiment of the present invention;
fig. 12 is a schematic structural diagram of a display device according to an embodiment of the present invention.
Detailed Description
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It will be appreciated that, in general, a display panel has a plurality of pixel circuits with different light emission colors, and the light emission colors of the light emitting elements in the pixel circuits are determined in particular, so that the display panel presents a full color image. For active light emitting elements, the light emitting colors are different, and the materials of the corresponding light emitting layers are also different, so that the light emitting efficiencies of the light emitting elements with different light emitting colors are different from each other. The number of light emitting elements is generally increased in the pixel circuit corresponding to the light emitting element having low light emitting efficiency, so as to improve the display effect. However, for the case where the pixel circuit has a plurality of light emitting elements, and the plurality of light emitting elements always remain emitting light in the light emitting stage, the power consumption of the light emitting elements is high, resulting in an increase in the power consumption of the entire display device.
Based on the technical problems described above, an embodiment of the present invention provides a display panel, including a first pixel circuit, the first pixel circuit including a driving transistor, a light emission control circuit, and at least two first light emitting elements; the light-emitting control circuit is arranged between the driving transistor and the first light-emitting element in series; the light-emitting control circuit is used for controlling the first light-emitting elements to emit light when the target display brightness value of the first light-emitting elements is smaller than or equal to a first preset value, and controlling the second light-emitting elements to emit light when the target display brightness value of the first light-emitting elements is larger than the first preset value; the second number is greater than the first number.
By adopting the technical scheme, the first pixel circuit comprises the driving transistor, the light-emitting control circuit and at least two first light-emitting elements, wherein the light-emitting control circuit is arranged between the driving transistor and the first light-emitting elements in series, so that the light-emitting control circuit can control the first light-emitting elements with different numbers to emit light, and the requirements of different display brightness can be met. When the target display brightness value of the first light-emitting elements is smaller than or equal to a first preset value, the light-emitting control circuit can control the first light-emitting elements to emit light, namely part of the first light-emitting elements emit light, so that the power consumption can be saved while the light-emitting brightness requirement is met. When the target display brightness value of the first light-emitting element is larger than a first preset value, the light-emitting control circuit can control the second number of the first light-emitting elements to emit light, wherein the second number is larger than the first number, so that the accurate light-emitting brightness of the display panel is ensured, and the display effect is improved.
The foregoing is the core idea of the present application, and the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without making any inventive effort are intended to fall within the scope of the present invention.
Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention, and fig. 2 is a schematic structural diagram of a first pixel circuit according to an embodiment of the present invention, and, as shown in fig. 1 and fig. 2, a display panel 100 includes a first pixel circuit 10, where the first pixel circuit 10 includes a driving transistor 11, a light-emitting control circuit 12, and at least two first light-emitting elements 13; the light emission control circuit 12 is disposed in series between the driving transistor 11 and the first light emitting element 13; the light emission control circuit 12 is configured to control the first light emitting elements 13 to emit light when the target display luminance value of the first light emitting elements 13 is less than or equal to a first preset value, and the light emission control circuit 12 is configured to control the first light emitting elements 13 to emit light when the target display luminance value of the first light emitting elements 13 is greater than the first preset value; the second number is greater than the first number.
It is understood that the first pixel circuit 10 in the display panel 100 may be a pixel circuit located at an arbitrary position, and a plurality of pixel circuits may be arranged in an arbitrary manner, and fig. 1 illustrates the arrangement of pixel circuits by way of example only, but is not limited thereto. With continued reference to fig. 2, the first pixel circuit 10 includes a driving transistor 11, a light-emitting control circuit 12, and at least two first light-emitting elements 13, where the light-emitting control circuit 12 in the first pixel circuit 10 can control the driving transistor 11 to provide a driving current to the first light-emitting elements 13 to drive the first light-emitting elements 13 to emit light, so that the display panel 100 presents a corresponding display screen.
With continued reference to fig. 2, the driving transistor 11 may be a P-channel transistor or an N-channel transistor, which is not limited by the embodiment of the present invention, fig. 2 is only an exemplary illustration, where the first pole of the driving transistor 11 is electrically connected to the first power source terminal PVDD to receive the first power source signal (e.g. positive power source signal) provided by the first power source terminal PVDD, the gate of the driving transistor 11 is electrically connected to the first node N1 to generate a driving current according to the data signal written by the first node N1 and the first power source signal, and meanwhile, the cathode of the first light emitting element 13 is written by the second power source terminal PVEE into the second power source signal (e.g. negative power source signal), and the driving current is provided to the first light emitting element 13 under the control of the light emitting control circuit 12 to drive the first light emitting element 13 to display and emit light with corresponding brightness.
The number of the first light emitting elements 13 of the first pixel circuit 10 may be two or more, and may be set according to practical requirements, which is not particularly limited in the embodiment of the present invention. Fig. 2 exemplarily shows that the first pixel circuit includes two first light emitting elements 13, but is not limited thereto. Specifically, the power consumption of the whole display panel can be effectively reduced by controlling the display quantity of the first light emitting element 13 under different display brightness through the light emitting control circuit 12. The light emission control circuit 12 is configured to control the first light emitting elements 13 to emit light when the target display luminance value of the first light emitting elements 13 is less than or equal to a first preset value, and the light emission control circuit 12 is configured to control the second light emitting elements 13 to emit light when the target display luminance value of the first light emitting elements 13 is greater than the first preset value, wherein the second number is greater than the first number. It is to be understood that the first number and the second number may be any values as long as the second number is greater than the first number, which is not particularly limited in the embodiment of the present invention.
When the display luminance of the display panel 100 is low, that is, the display luminance of the first light emitting elements 13 in the first pixel circuit 10 is less than or equal to the first preset value, the light emission control circuit 12 in the first pixel circuit 10 may emit light from the first number of first light emitting elements 13, and may emit light from a part of the first light emitting elements 13 while ensuring that the light emission luminance of the display panel 100 is satisfied, and the part of the first light emitting elements 13 may be any first light emitting elements 13. When the display brightness of the display panel 100 is high, that is, the display brightness of the first light emitting element 13 in the first pixel circuit 10 is greater than the first preset value, the second number of light emission controlled by the light emitting control circuit 12 in the first pixel circuit 10 to control the first light emitting element 13 to emit light is greater than the first number, so as to ensure the accurate light emitting brightness of the display panel 100.
In this way, by adjusting the number of light emission of the first light emitting element 13 according to the difference in the target display luminance of the first light emitting element 13, the overall power consumption can be effectively reduced while satisfying the target requirement of the display luminance. It is understood that the target display luminance in this embodiment refers to the light emitting luminance that the first light emitting element 13 needs to display finally, and is not the real-time display luminance value of the first light emitting element 13.
It should be noted that, the first preset value may be any value, which is not limited in the embodiment of the present invention, and may be set according to actual requirements. In addition, as will be understood by those skilled in the art, when the display panel 100 performs display light emission, each first pixel circuit 10 corresponds to one gray-scale value, which can be regarded as the brightness of the first light emitting element 13, and the higher the gray-scale value, the higher the brightness of the first light emitting element 13, so that judgment can be performed according to the gray-scale value corresponding to the first light emitting element 13, so that when different gray-scale values are displayed, the light emission control circuit 12 controls different numbers of the first light emitting elements 13 to emit light, thereby reducing the overall power consumption. The embodiment of the invention is not particularly limited, and can be set according to actual requirements.
For example, the first pixel circuit 10 includes two first light emitting elements 13 (refer to fig. 2), the gray scale values of the first light emitting elements 13 may be divided into 256 (0-255) gray scales, when the display panel 100 emits light and displays, the light emission control circuit 12 only controls one first light emitting element 13 to emit light when the display gray scale of the first light emitting element 13 is smaller than or equal to 128 gray scales, at this time, the two first light emitting elements 13 may emit light in turn, and when the display gray scale of the first light emitting element 13 is greater than 128 gray scales, the light emission control circuit 12 controls all the two first light emitting elements 13 to emit light, so that the number of light emitting elements 13 in the first pixel circuit 10 may be reduced when the gray scale is smaller, which is beneficial to reduce the power consumption of the first light emitting elements 13, and when the gray scale value is larger, in order to ensure the display quality of the display panel.
Alternatively, when the target display brightness value of the first light emitting elements 13 is less than or equal to the second preset value, the light emitting control circuit 12 is configured to control the third number of the first light emitting elements 13 to emit light; the second preset value is smaller than the first preset value, and the third number is smaller than or equal to the first number.
The first number and the third number may be any values, which are not specifically limited in the embodiment of the present invention. The second preset value may be any value smaller than the first preset value, which is not limited in the embodiment of the present invention, and may be set according to actual requirements.
Specifically, when the number of the first light emitting elements 13 is large, when the target display luminance value of the first light emitting element 13 is smaller than or equal to the second preset value, and the second preset value is smaller than the first preset value, the target display luminance of the first light emitting element 13 may be low, at this time, the light emission control circuit 12 may control the third number of the first light emitting elements 13 to emit light, and the third number is smaller than or equal to the first number, so that the light emission number of the first light emitting element 13 is reduced as much as possible under the condition of meeting the target display luminance requirement. Alternatively, the third number may be one, that is, only one first light emitting element 13 is controlled to emit light when the target display luminance value of the light emitting element 13 is less than or equal to the second preset value, so that the effect of reducing the power consumption is further achieved. Optionally, when the target display luminance value of the first light emitting element 13 is greater than the second preset value and less than or equal to the first preset value, the light emission control circuit 12 is configured to control the n first light emitting elements 13 to emit light, where n satisfies:
m is the total number of the first light emitting elements 13 in the first pixel circuit 10, G is the current target display luminance value of the first light emitting element 13, gmax is the maximum target display luminance value of the first light emitting element 13,/->
Representing an upward rounding.
Specifically, when the target display luminance value of the first light emitting element 13 is greater than the second preset value and less than or equal to the first preset value, the amount of light emission of the first light emitting element 13 controlled by the light emission control circuit 12 may be changed according to the difference of the display luminance of the first light emitting element 13, that is, the amount of light emission of the first light emitting element 13 may be increased with the increase of the display luminance of the first light emitting element 13, for example, may be linearly increased. When the light emission control circuit 12 controls the n first light emitting elements 13 to emit light, n satisfies
When the total number m and Gmax of the first light emitting elements 13 in the first pixel circuit 10 are the same as the maximum target display brightness value of the first light emitting elements 13, the number n of the light emitting control circuit 12 controlling the first light emitting elements 13 to emit light increases with the increase of the current target display brightness value of the first light emitting elements 13, and considering that n is an integer, when m×g/Gmax includes a small value, an upward rounding process is required to ensure that the display brightness of the first light emitting elements 13 meets the light emitting requirement, so that the number of light emitting of the first light emitting elements 13 is controlled adaptively according to the difference of the target display brightness values when the display brightness of the first light emitting elements is met, the power consumption of the first light emitting elements 13 can be effectively reduced, and the overall power consumption is further reduced.
Optionally, any one of the first light emitting elements includes at least a first light emitting duration within a same light emitting phase of the first pixel circuit.
It can be appreciated that, due to the limited lifetime of the first light emitting element 13, if all the first light emitting elements 13 in the first pixel circuit 10 emit light at any target display brightness of the display panel 100, the aging of the first light emitting element 13 is accelerated, the service life is shortened, and the power consumption of the display panel 100 is increased.
Specifically, in the same lighting stage of the first pixel circuit 10, any one of the first light emitting elements includes at least a first lighting period, where the first lighting period may be any size period, and the embodiment of the present invention is not limited in particular. When only a part of the first light emitting elements 13 in the first pixel circuit 10 emit light, since any one of the first light emitting elements 13 at least includes the first light emitting period, all of the first light emitting elements 13 emit light in turn, so that the total light emitting period of each of the first light emitting elements 13 is reduced, which is beneficial to improving the service life of the first light emitting element 13, and meanwhile, the power consumption of the whole display panel 100 can be reduced.
It should be noted that, the first light emitting duration of the first light emitting element 13 may be a continuous light emitting duration or may be an interval, which is not limited in the embodiment of the present invention, and may be set according to actual requirements. In addition, the total light emitting duration of each first light emitting element 13 may be the same or different, which is not particularly limited in the embodiment of the present invention.
Optionally, the first pixel circuit 10 includes m first light emitting elements 13; at any one time within the same light-emitting phase t of the first pixel circuit 10, the light-emitting control circuit 12 is configured to control p first light-emitting elements 13 to emit light, where p < m; and the light emission period t' of any one of the first light emitting elements 13 satisfies: t' =t (p/m).
Specifically, when the total number of the first light emitting elements 13 in the first pixel circuit 10 is m, and the light emission control circuit 12 controls p first light emitting elements 13 to emit light, where p < m, it is understood that only part of the first light emitting elements 13 in the first pixel circuit 10 emit light, and the p first light emitting elements 13 may be any p of the m first light emitting elements 13. In order to avoid that the same first light emitting element 13 always emits light during the light emitting period t of the first pixel circuit 10, the light emitting control circuit 12 may control all the first light emitting elements 13 to emit light in turn, and at this time, for the same first light emitting element 13, the light emitting duration t ' will be less than the total light emitting duration of the whole light emitting period t, and the ratio of the light emitting duration t ' to the light emitting period t is p/m, that is, the light emitting duration t ' of any one of the first light emitting elements satisfies: t' =t (p/m), so that each first light emitting element 13 emits light in turn and has the same light emitting duration, and as a result, compared with the first light emitting element 13 emitting light all the time in the light emitting stage, the light emitting duty ratio of the first light emitting element 13 in the same light emitting stage t is reduced, thereby being beneficial to improving the service life of the first light emitting element 13.
It should be noted that, in the same light-emitting stage t of the first pixel circuit 10, the sequence of controlling the p first light-emitting elements 13 to emit light in turn by the light-emitting control circuit 12 may be any form, or may be repeated for a plurality of times according to a fixed sequence of emitting light in turn, so long as the light-emitting duration t 'of any one first light-emitting element 13 is t' =t× (p/m), which may be set according to actual requirements.
For example, fig. 3 is a timing chart of a first light emitting element according to an embodiment of the present invention, as shown in fig. 3, the total number m of the first light emitting elements 13 in the first pixel circuit 10 is 5 (e.g. D1, D2, D3, D4, and D5 respectively), and when the target display brightness value of the first light emitting element 13 needs to be controlled by the corresponding light emitting control circuit 12 to emit light of 3 first light emitting elements 13, that is, at any time within the same light emitting stage t of the first pixel circuit 10, the light emitting control circuit 12 controls the number p of light emitted by the first light emitting elements 13 to be 3. With continued reference to fig. 3, fig. 3 illustrates the light emission timings of D1 to D55 first light emitting elements 13, and it can be seen that, at any time in the same light emission phase t of the first pixel circuit 10, the light emission control circuit 12 controls the 3 first light emitting elements 13 to emit light, all the first light emitting elements 13 emit light in turn, and the light emission duration t' of any one of the first light emitting elements 13 is equal to t×3/5, so that, in the same light emission phase t, the light emission duration of the first light emitting element 13 only occupies 3/5 of the light emission phase t, thereby reducing the light emission duration duty ratio of the first light emitting element 13, and further facilitating the improvement of the service life of the first light emitting element 13. It is to be understood that the order of the alternate light emission of the 3 first light emitting elements 13 controlled by the light emission control circuit 12 is not limited to that shown in fig. 3, and may be any light emission timing, which is not listed here, and may be set according to actual requirements.
Optionally, fig. 4 is a schematic structural diagram of another first pixel circuit according to an embodiment of the present invention, as shown in fig. 4, the light-emitting control circuit 12 includes a light-emitting signal control end EM, a plurality of gate units 120, and a plurality of light-emitting control transistors M1, where the light-emitting control transistors M1 are in one-to-one correspondence with the gate units 120; the light emission control transistor M1 is disposed in series between the driving transistor 11 and the first light emitting element 13; the gating units 120 include input terminals, output terminals and control terminals, the input terminals of each gating unit 120 are electrically connected to the emission signal control terminal EM, the output terminals of the gating units 120 are electrically connected to the control terminal of the emission control transistor M1, and the control terminals of the gating units 120 are electrically connected to the gating signal line CKH.
Specifically, fig. 4 illustrates that the first pixel circuit 10 includes M light-emitting control transistors M1, which are m1_1 to m1_m, respectively, and the light-emitting control transistor M1 may be a P-channel transistor or an N-channel transistor, which is not particularly limited in this embodiment of the present invention, and may be set according to practical requirements. It is understood that, when the emission control transistor M1 is a P-channel transistor, the emission control signal EM provided from the emission signal control terminal EM is a low level signal (e.g., vgl) in the emission phase, and the emission control signal Vgl is provided to the emission control transistor M1 when the gate unit 120 is in the on state, so that the emission control transistor M1 is turned on, thereby causing the driving transistor 11 to generate a driving current to be provided to the first light emitting element 13 to drive the first light emitting element 13 to emit light. Alternatively, when the emission control transistor M1 is an N-channel transistor, the emission control signal EM provided from the emission signal control terminal EM is a high level signal (e.g., vgh), and when the gate unit 120 is in the on state, the emission control signal Vgh is provided to the emission control transistor M1, so that the emission control transistor M1 is turned on, thereby causing the driving transistor 11 to generate a driving current to be provided to the first light emitting element 13 to drive the first light emitting element 13 to emit light. Fig. 4 is a schematic diagram illustrating a structure in which the light emitting control transistor M1 is a P-channel transistor, but is not limited thereto.
Further, the gating signal Ckh (e.g. Ckh1 to Ckhm) provided by the gating signal lines CKH (e.g. ckh_1 to ckh_m) can control the on or off of the corresponding gating units 120, when the gating signal Ckh controls the gating units 120 to be on, the light-emitting control signal EM provided by the EM can be transmitted to the control end of the light-emitting control transistor M1, so as to control the light-emitting control transistor M1 to be on or off, and when the light-emitting control signal EM is an effective signal for controlling the light-emitting control transistor M1 to be on, the corresponding first light-emitting element 13 can emit light. When the gate signal Ckh controls the gate unit 120 to turn off, the light-emitting control transistor M1 cannot be turned on no matter whether the light-emitting control signal Em is a valid signal for controlling the light-emitting control transistor M1 to turn on, and thus the corresponding first light-emitting element 13 cannot be made to emit light. Thus, in the light emitting stage of the first pixel circuit 10, at this time, the light emitting signal control terminal EM provides an effective signal capable of controlling the light emitting control transistor M1 to be turned on, and the gate signal Ckh transmitted by the gate signal line CKH is controlled, so that the selectively turned on gate unit 120 can be realized, thereby realizing the adjustment of the light emitting of the first light emitting elements 13 with different numbers, and achieving the effect of saving power consumption.
Optionally, fig. 5 is a schematic structural diagram of still another first pixel circuit according to an embodiment of the present invention, and as shown in fig. 5, the gate unit 120 includes a thin film transistor M2.
The thin film transistor M2 may be a P-channel transistor or an N-channel transistor, which is not particularly limited in this embodiment of the present invention and may be set according to practical requirements. It will be appreciated that when the thin film transistor M2 is a P-channel transistor, the thin film transistor M2 is controlled to be turned on when the gate signal Ckh provided by the control gate signal line CKH is low (e.g., vgl), and the thin film transistor M2 is controlled to be turned off when the gate signal Ckh is high (e.g., vgh). Alternatively, when the thin film transistor M2 is an N-channel transistor, the thin film transistor M2 is controlled to be turned on when the gate signal Ckh provided by the control gate signal line CKH is at a high level (e.g., vgh), and the thin film transistor M2 is controlled to be turned off when the gate signal Ckh is at a low level (e.g., vgl). Fig. 5 illustrates that the thin film transistor M2 is a P-channel transistor by way of example only, but is not limited thereto.
As an example, fig. 6 is a driving timing chart of a first pixel circuit according to an embodiment of the present invention, and referring to fig. 5 and 6, taking the light-emitting control transistors M1 (for example, m1_1_m1_m) and the thin film transistors M2 (for example, m2_1_m2_m) as P-channel transistors as examples, if the total number of the first light-emitting elements 13 in the first pixel circuit 10 is M5, at any time in the light-emitting phase, the light-emitting control circuit 12 controls the 3 first light-emitting elements 13 to emit light alternately, at this time, the light-emitting control signals EM provided by the light-emitting signal control terminals EM are low-level Vgl, the gate signals Ckh to Ckh5 provided by the gate signal lines ckh_1 to ckh_5 respectively electrically connected to the gate units 120 in one-to one correspondence control the thin film transistors M2 to be low-level Vgl, so that the thin film transistors M2 are turned on when the gate signals Ckh are low-level Vgl, and when the thin film transistors M2 are turned off, the light-emitting control the first light-emitting elements 13 to turn on according to the light-emitting control signals M1.
Optionally, fig. 7 is a schematic structural diagram of still another first pixel circuit according to an embodiment of the present invention, as shown in fig. 7, the first pixel circuit 10 further includes a reset circuit 14, and the reset circuit 14 includes a reset transistor M3; an input terminal of the reset transistor M3 is electrically connected to the reset signal terminal VREF, an output terminal of the reset transistor M3 is electrically connected to the anode of each of the first light emitting elements 13, and a control terminal of the reset transistor M3 is electrically connected to the reset control line S1.
The reset transistor M3 may be a P-channel transistor or an N-channel transistor, which is not limited in the embodiment of the present invention.
Specifically, in the reset phase, when the signal provided by the reset control line S1 controls the reset transistor M3 to be turned on, the reset signal VREF provided by the reset signal terminal VREF may be transmitted to the anode of the first light emitting element 13, so as to reset the anode potential of the first light emitting element 13, so as to reduce the influence of the voltage of the anode of the light emitting element 20 of the previous frame on the voltage of the anode of the light emitting element 20 of the next frame, and improve the display effect.
Optionally, fig. 8 is a schematic structural diagram of a first pixel circuit according to another embodiment of the present invention, and as shown in fig. 8, the first pixel circuit 10 further includes an initialization module 15, a data writing module 16, a threshold compensation module 17, a first light emitting control module 18, and a storage capacitor Cst. The output terminal of the initializing module 15 is electrically connected to the first node N1, and is used for initializing the gate of the driving transistor 11 in the initializing stage. The data writing module 16 is electrically connected to the first electrode of the driving transistor 11, and the threshold compensation module 17 is disposed on the data writing path to compensate the threshold voltage of the driving transistor 11, so that the data writing module 16 sequentially writes the data signal to the gate of the driving transistor 11, i.e., the first node N1, through the driving transistor 11 and the threshold compensation module 17 during the data writing phase. The first light emitting control module 18 is connected in series between the first power supply terminal PVDD and the first pole of the driving transistor 11, and the control terminal of the first light emitting control module 18 can multiplex the light emitting signal control terminal EM in the light emitting control circuit 12, at this time, the transistors in the first light emitting control module 18 and the light emitting control transistor M1 can have the same channel type, so that in the light emitting stage, the light emitting control signal EM provided by the light emitting signal control terminal EM can simultaneously control the first light emitting control module 18 to be turned on, and the first power supply terminal PVDD provides a fixed potential for the first pole of the driving transistor 11, so that the driving transistor 11 can generate the driving current. In addition, one of the first electrode plate and the second electrode plate of the storage capacitor Cst is electrically connected to the gate electrode (i.e., the first node N1) of the driving transistor 11, and the other is electrically connected to the first power supply terminal PVDD, so that the storage capacitor Cst can maintain the potential of the gate electrode of the driving transistor 11 when the first pixel circuit 10 operates in the light emitting phase, so as to ensure that the driving transistor 11 can continuously and stably generate the driving current under the potential of the gate electrode of the driving transistor 11 and the action of the first power supply terminal PVDD in the light emitting phase, thereby driving the first light emitting element 13 to stably emit light.
It should be noted that the transistors in the initialization module 15, the data writing module 16, and the threshold compensation module 17 may have the same or different channel types as the driving transistor 11, which is not particularly limited in the embodiment of the present invention, and may be set according to actual requirements. Fig. 8 is merely exemplary.
Optionally, fig. 9 is a schematic structural diagram of another display panel provided in the embodiment of the present invention, as shown in fig. 9, fig. 10 is a schematic structural diagram of a second pixel circuit provided in the embodiment of the present invention, and referring to fig. 9 and 10, the display panel 100 further includes a second pixel circuit 20, where the second pixel circuit 20 includes at least one second light emitting element 23; the light emitting efficiency of the first light emitting element 13 is smaller than the light emitting efficiency of the second light emitting element 23, and the number of the first light emitting elements 13 in the first pixel circuit 10 is larger than the number of the second light emitting elements 23 in the second pixel circuit 20.
Referring to fig. 9, the second pixel circuit 20 may be located at any position in the display panel 100, which is not particularly limited in the embodiment of the present invention. Fig. 9 is merely exemplary. The light emitting efficiency of the first light emitting element 13 of the first pixel circuit 10 is smaller than the light emitting efficiency of the second light emitting element 23 of the second pixel circuit 20, and the specific light emitting colors of the first light emitting element 13 and the second light emitting element 23 are not limited in this embodiment, for example, the light emitting color of the second light emitting element 23 of the first light emitting element 13 may be any two of red (R), green (G), blue (B), yellow, white, cyan, or magenta, but is not limited thereto, as long as the light emitting efficiency of the first light emitting element 13 is smaller than the light emitting efficiency of the second light emitting element 23.
In an alternative embodiment, the first light emitting element 13 includes a red micro light emitting diode, and the second light emitting element 23 includes a blue micro light emitting diode or a green micro light emitting diode, it will be understood that, for the light emitting element being a micro light emitting diode, the light emitting efficiency of the red micro light emitting diode is generally smaller than that of the blue micro light emitting diode or the green micro light emitting diode, and fig. 9 illustrates an arrangement structure of the first pixel circuit 10 and the second pixel circuit by way of example, but not limited thereto.
In other embodiments, the first light emitting element 13 may be a blue light emitting diode, and the second light emitting element 23 may be a red light emitting diode or a green light emitting diode, and it is understood that the light emitting efficiency of the blue light emitting diode is generally lower than that of the red light emitting diode or the green light emitting diode.
With continued reference to fig. 10, the second pixel circuit 20 may have the same circuit structure as the first pixel circuit 10, except that the number of the second light emitting elements 23 in the second pixel circuit 20 is smaller than the number of the first light emitting elements 13 in the first pixel circuit 10, or that the second light emitting elements 23 in the second pixel circuit 20 are only one (for example, as shown in fig. 10), but is not limited thereto. In this way, by setting the number of the first light emitting elements 13 in the first pixel circuit 10 to be greater than the number of the second light emitting elements 23 in the second pixel circuit 20, in the light emitting display stage of the display panel 100, by controlling the number of the first light emitting elements 13 in the first pixel circuit 10 to be greater than the number of the second light emitting elements 23 in the second pixel circuit 20, the display brightness of the first pixel circuit 10 and the second pixel circuit is made uniform, thereby improving the display uniformity of the display panel 100.
Based on the same inventive concept, the embodiment of the present invention further provides a driving method of a display panel, which is applied to the display panel 100 in any of the above embodiments, and fig. 11 is a flowchart of a driving method of a display panel according to an embodiment of the present invention, and referring to fig. 2 and 11 in combination, the driving method includes:
s101, acquiring a target display brightness value of the first light-emitting element.
S102, in a light-emitting stage, when the target display brightness value of the first light-emitting element is smaller than or equal to a first preset value, the light-emitting control circuit controls the first light-emitting elements to emit light, and when the target display brightness value of the first light-emitting element is larger than the first preset value, the light-emitting control circuit controls the second light-emitting elements to emit light, wherein the second number is larger than the first number.
In this embodiment, by acquiring the target display luminance value of the first light emitting element, then comparing the target display luminance value of the first light emitting element with the first preset value in the light emitting stage, when the target display luminance value of the first light emitting element is smaller than or equal to the first preset value, the light emitting control circuit controls the first light emitting elements to emit light in the first number, and when the target display luminance value of the first light emitting element is greater than the first preset value, the light emitting control circuit controls the second light emitting elements to emit light in the second number, and the second number is greater than the first number, so that the light emitting number of the first light emitting elements is adjusted according to the target display luminance value of the first light emitting element, so as to achieve the requirements of different display luminances. If the target display brightness value of the first light-emitting element is smaller than or equal to the first preset value, the display brightness of the first light-emitting element is lower, and at the moment, the light-emitting control circuit can control part of the first light-emitting element to emit light, so that the light-emitting brightness requirement is met, and meanwhile, the power consumption can be reduced. When the target display brightness value of the first light-emitting element is larger than the first preset value, the light-emitting control circuit can control the second number of the first light-emitting elements to emit light, and the second number is larger than the first number, so that the accurate light-emitting brightness of the display panel is ensured.
Based on the same inventive concept, the embodiment of the present invention further provides a display device, and fig. 12 is a schematic structural diagram of the display device provided by the embodiment of the present invention, as shown in fig. 12, the display device 200 includes the flexible display panel 100 provided by any embodiment of the present invention, so that the display device 200 provided by the embodiment of the present invention includes the technical features of the flexible display panel 100 provided by the embodiment of the present invention, and can achieve the beneficial effects of the flexible display panel 100 provided by the embodiment of the present invention, and the same points can refer to the description of the flexible display panel 100 provided by the embodiment of the present invention described above, and are not repeated herein. The display device 200 provided in the embodiment of the present invention may be a mobile phone, or any electronic product with a display function, including but not limited to the following categories: television, notebook computer, desktop display, tablet computer, digital camera, smart bracelet, smart glasses, vehicle-mounted display, medical equipment, industrial control equipment, touch interactive terminal, etc., which are not particularly limited in this embodiment of the invention.
The above embodiments do not limit the scope of the present invention. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives are possible, depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of the present invention.
Claims (12)
1. A display panel, comprising a first pixel circuit, wherein the first pixel circuit comprises a driving transistor, a light-emitting control circuit and at least two first light-emitting elements;
the light-emitting control circuit is arranged in series between the driving transistor and the first light-emitting element;
the light-emitting control circuit is used for controlling a first number of the first light-emitting elements to emit light when the target display brightness value of the first light-emitting elements is smaller than or equal to a first preset value, and is used for controlling a second number of the first light-emitting elements to emit light when the target display brightness value of the first light-emitting elements is larger than the first preset value; the second number is greater than the first number.
2. The display panel according to claim 1, wherein the light emission control circuit is configured to control a third number of the first light emitting elements to emit light when a target display luminance value of the first light emitting elements is less than or equal to a second preset value; the second preset value is smaller than the first preset value, and the third number is smaller than or equal to the first number.
3. The display panel according to claim 2, wherein when the target display luminance value of the first light emitting element is greater than the second preset value and less than or equal to the first preset value, the light emission control circuit is configured to control the n first light emitting elements to emit light, where n satisfies:
m is the total number of first light emitting elements in the first pixel circuit, G is the current target display brightness value of the first light emitting elements, gmax is the maximum target display brightness value of the first light emitting elements, ">
Representing an upward rounding.
4. The display panel according to claim 1, wherein any one of the first light emitting elements includes at least a first light emitting period within the same light emitting stage of the first pixel circuit.
5. The display panel according to claim 1, wherein the first pixel circuit includes m first light emitting elements;
at any time within the same light-emitting phase t of the first pixel circuit, the light-emitting control circuit is configured to control p first light-emitting elements to emit light, where p < m;
and the light emitting duration t' of any one of the first light emitting elements satisfies: t' =t (p/m).
6. The display panel according to claim 1, wherein the light emission control circuit includes a light emission signal control terminal, a plurality of gate units, and a plurality of light emission control transistors, the light emission control transistors being in one-to-one correspondence with the gate units; the light-emitting control crystal is arranged in series between the driving transistor and the first light-emitting element;
the gating unit comprises an input end, an output end and a control end, wherein the input end of each gating unit is electrically connected with the luminous signal control end, the output end of each gating unit is electrically connected with the control end of the luminous control transistor, and the control end of each gating unit is electrically connected with the gating signal line.
7. The display panel of claim 6, wherein the gate unit comprises a thin film transistor.
8. The display panel of claim 1, further comprising a second pixel circuit comprising at least one second light emitting element;
the luminous efficiency of the first luminous element is smaller than that of the second luminous element, and the number of the first luminous elements in the first pixel circuit is larger than that of the second luminous elements in the second pixel circuit.
9. The display panel of claim 8, wherein the first light emitting element comprises a red micro light emitting diode and the second light emitting element comprises a blue micro light emitting diode or a green micro light emitting diode.
10. The display panel according to claim 1, wherein the first pixel circuit further comprises a reset circuit comprising a reset transistor;
the input end of the reset transistor is electrically connected with the reset signal end, the output end of the reset transistor is electrically connected with the anode of each first light emitting element, and the control end of the reset transistor is electrically connected with the reset control line.
11. A driving method of a display panel, characterized in that it is applied to the display panel according to any one of claims 1 to 10, comprising:
obtaining a target display brightness value of the first light-emitting element;
in the light emitting stage, when the target display brightness value of the first light emitting element is smaller than or equal to a first preset value, the light emitting control circuit controls a first number of the first light emitting elements to emit light, and when the target display brightness value of the first light emitting element is larger than the first preset value, the light emitting control circuit controls a second number of the first light emitting elements to emit light, wherein the second number is larger than the first number.
12. A display device comprising the display panel of any one of claims 1-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211551410.6A CN116189616A (en) | 2022-12-05 | 2022-12-05 | Display panel, driving method thereof and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211551410.6A CN116189616A (en) | 2022-12-05 | 2022-12-05 | Display panel, driving method thereof and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116189616A true CN116189616A (en) | 2023-05-30 |
Family
ID=86437269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211551410.6A Pending CN116189616A (en) | 2022-12-05 | 2022-12-05 | Display panel, driving method thereof and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116189616A (en) |
Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106935190A (en) * | 2017-02-22 | 2017-07-07 | 上海天马有机发光显示技术有限公司 | A kind of organic electroluminescence display panel, organic light-emitting display device, the driving method of organic electroluminescence display panel |
| CN108648690A (en) * | 2018-04-26 | 2018-10-12 | 上海天马有机发光显示技术有限公司 | A kind of display panel and display device |
| US20200211477A1 (en) * | 2015-10-15 | 2020-07-02 | Ordos Yuansheng Optoelectronics Co., Ltd. | Display substrate and driving method thereof |
| CN111710300A (en) * | 2020-06-30 | 2020-09-25 | 厦门天马微电子有限公司 | Display panel, driving method and display device |
| CN111710299A (en) * | 2020-06-30 | 2020-09-25 | 厦门天马微电子有限公司 | Display panel, driving method thereof and display device |
| CN112216244A (en) * | 2020-10-30 | 2021-01-12 | 上海天马有机发光显示技术有限公司 | Display panel, driving method thereof and display module |
| CN112466254A (en) * | 2020-12-17 | 2021-03-09 | 上海天马有机发光显示技术有限公司 | Display panel, display control method, capacity determination method and display device |
| US20210097936A1 (en) * | 2019-09-29 | 2021-04-01 | Wuhan Tianma Micro-Electronics Co., Ltd. | Display panel and display device |
| CN112652266A (en) * | 2020-12-28 | 2021-04-13 | 厦门天马微电子有限公司 | Display panel and display device |
| US20210110770A1 (en) * | 2018-04-19 | 2021-04-15 | Boe Technology Group Co., Ltd. | Pixel circuit, display panel, display device, and driving method |
| CN112700749A (en) * | 2021-01-04 | 2021-04-23 | 上海天马有机发光显示技术有限公司 | Display panel driving method and driving device thereof, and display device |
| CN112908264A (en) * | 2021-01-26 | 2021-06-04 | 厦门天马微电子有限公司 | Pixel driving circuit, driving method, display panel and display device |
| CN113643663A (en) * | 2021-08-13 | 2021-11-12 | 京东方科技集团股份有限公司 | Pixel driving circuit, display panel and driving method |
| US20220051630A1 (en) * | 2020-08-11 | 2022-02-17 | Everdisplay Optronics (Shanghai) Co.,Ltd. | Driving method of display panel and display device |
| CN114822381A (en) * | 2022-04-29 | 2022-07-29 | 湖北长江新型显示产业创新中心有限公司 | Pixel circuit, driving method thereof, display panel and display device |
| CN114863878A (en) * | 2022-05-23 | 2022-08-05 | 厦门天马显示科技有限公司 | Display panel driving method, display panel and display device |
| CN114974111A (en) * | 2022-05-26 | 2022-08-30 | 厦门天马显示科技有限公司 | Pixel circuit, display panel and display device |
| CN115035858A (en) * | 2022-06-29 | 2022-09-09 | 武汉天马微电子有限公司 | Pixel circuit, driving method thereof and display panel |
| US20220310015A1 (en) * | 2022-03-31 | 2022-09-29 | Wuhan Tianma Microelectronics Co., Ltd. | Display panel, method for driving the same, and display apparatus |
| US20220327993A1 (en) * | 2022-03-31 | 2022-10-13 | Wuhan Tianma Microelectronics Co., Ltd. | Display panel, method for driving the same, and display apparatus |
-
2022
- 2022-12-05 CN CN202211551410.6A patent/CN116189616A/en active Pending
Patent Citations (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20200211477A1 (en) * | 2015-10-15 | 2020-07-02 | Ordos Yuansheng Optoelectronics Co., Ltd. | Display substrate and driving method thereof |
| CN106935190A (en) * | 2017-02-22 | 2017-07-07 | 上海天马有机发光显示技术有限公司 | A kind of organic electroluminescence display panel, organic light-emitting display device, the driving method of organic electroluminescence display panel |
| US20210110770A1 (en) * | 2018-04-19 | 2021-04-15 | Boe Technology Group Co., Ltd. | Pixel circuit, display panel, display device, and driving method |
| CN108648690A (en) * | 2018-04-26 | 2018-10-12 | 上海天马有机发光显示技术有限公司 | A kind of display panel and display device |
| US20210097936A1 (en) * | 2019-09-29 | 2021-04-01 | Wuhan Tianma Micro-Electronics Co., Ltd. | Display panel and display device |
| CN111710300A (en) * | 2020-06-30 | 2020-09-25 | 厦门天马微电子有限公司 | Display panel, driving method and display device |
| CN111710299A (en) * | 2020-06-30 | 2020-09-25 | 厦门天马微电子有限公司 | Display panel, driving method thereof and display device |
| US11004385B1 (en) * | 2020-06-30 | 2021-05-11 | Xiamen Tianma Micro-Electronics Co., Ltd. | Display panel, driving method and display device |
| US20220051630A1 (en) * | 2020-08-11 | 2022-02-17 | Everdisplay Optronics (Shanghai) Co.,Ltd. | Driving method of display panel and display device |
| CN112216244A (en) * | 2020-10-30 | 2021-01-12 | 上海天马有机发光显示技术有限公司 | Display panel, driving method thereof and display module |
| CN112466254A (en) * | 2020-12-17 | 2021-03-09 | 上海天马有机发光显示技术有限公司 | Display panel, display control method, capacity determination method and display device |
| CN112652266A (en) * | 2020-12-28 | 2021-04-13 | 厦门天马微电子有限公司 | Display panel and display device |
| CN112700749A (en) * | 2021-01-04 | 2021-04-23 | 上海天马有机发光显示技术有限公司 | Display panel driving method and driving device thereof, and display device |
| CN112908264A (en) * | 2021-01-26 | 2021-06-04 | 厦门天马微电子有限公司 | Pixel driving circuit, driving method, display panel and display device |
| CN113643663A (en) * | 2021-08-13 | 2021-11-12 | 京东方科技集团股份有限公司 | Pixel driving circuit, display panel and driving method |
| US20220310015A1 (en) * | 2022-03-31 | 2022-09-29 | Wuhan Tianma Microelectronics Co., Ltd. | Display panel, method for driving the same, and display apparatus |
| US20220327993A1 (en) * | 2022-03-31 | 2022-10-13 | Wuhan Tianma Microelectronics Co., Ltd. | Display panel, method for driving the same, and display apparatus |
| CN114822381A (en) * | 2022-04-29 | 2022-07-29 | 湖北长江新型显示产业创新中心有限公司 | Pixel circuit, driving method thereof, display panel and display device |
| CN114863878A (en) * | 2022-05-23 | 2022-08-05 | 厦门天马显示科技有限公司 | Display panel driving method, display panel and display device |
| CN114974111A (en) * | 2022-05-26 | 2022-08-30 | 厦门天马显示科技有限公司 | Pixel circuit, display panel and display device |
| CN115035858A (en) * | 2022-06-29 | 2022-09-09 | 武汉天马微电子有限公司 | Pixel circuit, driving method thereof and display panel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111710299B (en) | Display panel, driving method thereof and display device | |
| CN108417149B (en) | Display panel, driving method thereof and display device | |
| CN109036279B (en) | Array substrate, driving method, organic light emitting display panel and display device | |
| CN109754750B (en) | Display device and driving method thereof | |
| CN108648690B (en) | Display panel and display device | |
| CN109346009B (en) | Organic light emitting display panel and display device | |
| US10997920B2 (en) | Pixel drive circuit and drive method, and display apparatus | |
| CN112908264B (en) | Pixel driving circuit, driving method, display panel and display device | |
| CN111799318B (en) | Display panel and display device | |
| CN110021261B (en) | Array substrate, driving method thereof and display panel | |
| CN105788520B (en) | Organic light emitting display device | |
| CN113724653B (en) | Display adjusting circuit, method and display device | |
| CN112562589B (en) | Pixel driving circuit, display panel and driving method of pixel driving circuit | |
| CN113692612B (en) | Display device, driving method of display device, and electronic apparatus | |
| CN111341267B (en) | Pixel circuit and driving method thereof | |
| US11114018B2 (en) | Light emitting display device and method for driving same | |
| US20240078972A1 (en) | Display panel, method for driving display panel, driving circuit and display device | |
| KR20040042846A (en) | Display device | |
| CN113707079B (en) | Pixel circuit and display panel | |
| JP4260586B2 (en) | Display device drive circuit and drive method | |
| CN110534054B (en) | Display driving method and device, display device, storage medium and chip | |
| CN112652266A (en) | Display panel and display device | |
| CN111312162A (en) | Pixel circuit, display device and driving method of pixel circuit | |
| CN110400542B (en) | Pixel driving circuit, display panel and display device | |
| CN111986630A (en) | Display brightness adjusting method and device and display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |