CN113362759A - Miniature light-emitting diode display panel and display device - Google Patents
Miniature light-emitting diode display panel and display device Download PDFInfo
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- CN113362759A CN113362759A CN202110704728.2A CN202110704728A CN113362759A CN 113362759 A CN113362759 A CN 113362759A CN 202110704728 A CN202110704728 A CN 202110704728A CN 113362759 A CN113362759 A CN 113362759A
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- 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]
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- 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
- G09G3/2007—Display of intermediate tones
- G09G3/2074—Display of intermediate tones using sub-pixels
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- 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
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0233—Improving the luminance or brightness uniformity across the screen
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Abstract
The embodiment of the application provides a micro light-emitting diode display panel and a display device. The display panel comprises a plurality of sub-pixels, the plurality of sub-pixels comprise a first sub-pixel and a second sub-pixel, and the first sub-pixel and the second sub-pixel are sub-pixels with the same color. The first sub-pixel includes a first pixel driving circuit and at least two first micro light emitting diodes electrically connected to each other. The second sub-pixel includes a second pixel driving circuit and a second micro light emitting diode electrically connected to each other. For the first color sub-pixels emitting the same color, the first sub-pixels are arranged in part of the first color sub-pixels, and the second sub-pixels are arranged in the other part of the first color sub-pixels, so that the light emitting brightness of part of the first color sub-pixels can be increased, the overall brightness of the first color light in the micro light emitting diode display panel can be adjusted, and meanwhile, the cost can be controlled.
Description
[ technical field ] A method for producing a semiconductor device
The application relates to the technical field of display, in particular to a miniature light-emitting diode display panel and a display device.
[ background of the invention ]
As a new generation of display technology, a Micro-Diode (Micro-LED) display panel has the significant advantages of higher brightness, better Light-Emitting efficiency, and lower power consumption. Has become the focus of research in the display panel industry. However, in the three types of chips of the current micro diode, since different chips are limited by their own materials, their luminous efficiencies are different, resulting in non-uniform brightness of the display panel.
[ application contents ]
In view of the above, embodiments of the present disclosure provide a micro light emitting diode display panel and a display device.
In a first aspect, an embodiment of the present application provides a micro light emitting diode display panel, which includes a plurality of sub-pixels, where the plurality of sub-pixels further includes a first sub-pixel and a second sub-pixel, and the first sub-pixel and the second sub-pixel are sub-pixels with the same color; the first sub-pixel comprises a first pixel driving circuit and at least two first micro light-emitting diodes, and the first micro light-emitting diodes contained in the same first sub-pixel are electrically connected with the first pixel driving circuit; the second sub-pixel comprises a second pixel driving circuit and a second micro light-emitting diode, and the second micro light-emitting diode contained in the same second sub-pixel is electrically connected with the second pixel driving circuit.
In one implementation manner of the first aspect, the first micro light emitting diode and the second micro light emitting diode are both red light emitting diodes.
In one implementation manner of the first aspect, in the same first sub-pixel, at least two first light emitting diodes included in the same first sub-pixel are connected in series or in parallel.
In one implementation manner of the first aspect, the micro light emitting diode display panel includes a first region in which a first sub-pixel is disposed and a second region in which a second sub-pixel is disposed.
In one implementation form of the first aspect, the micro light emitting diode display panel includes a binding region and a display region; the binding region comprises a plurality of binding pins, and the binding pins are bound with the integrated circuit board or the flexible circuit board; the first area and the second area are arranged in the display area, and the first area is far away from the binding area relative to the second area.
In one implementation manner of the first aspect, the plurality of sub-pixels further includes a third sub-pixel and a fourth sub-pixel; the third sub-pixel comprises a third pixel driving circuit and a third micro light-emitting diode, and the third micro light-emitting diode is electrically connected with the output end of the third pixel driving circuit; the fourth sub-pixel comprises a fourth pixel driving circuit and a fourth micro light-emitting diode, and the fourth micro light-emitting diode is electrically connected with the output end of the fourth pixel driving circuit; the first area surrounds the second area, and the offset distance between the third micro light-emitting diode in the first area and the output end of the corresponding electrically connected third pixel driving circuit is greater than the offset distance between the third micro light-emitting diode in the second area and the output end of the corresponding electrically connected third pixel driving circuit; and/or the offset distance between the fourth micro light-emitting diode in the first area and the output end of the corresponding electrically connected fourth pixel driving circuit is larger than the offset distance between the fourth micro light-emitting diode in the second area and the output end of the corresponding electrically connected fourth pixel driving circuit.
In one implementation manner of the first aspect, the at least two first micro light emitting diodes are arranged in series in the first sub-pixel of the first region.
In one implementation manner of the first aspect, a first sub-pixel is further disposed in the second region; and at least two first micro light-emitting diodes contained in the first sub-pixels in the second area are connected in parallel.
In one implementation manner of the first aspect, the plurality of first sub-pixels are arranged in a ring shape.
In one implementation manner of the first aspect, the plurality of first sub-pixels are repeatedly arranged in a first repeating unit, the first repeating unit includes three first sub-pixels, and the three first sub-pixels are arranged in a triangle.
In one implementation of the first aspect, the second sub-pixel is located between any two adjacent first sub-pixels.
In a second aspect, an embodiment of the present application provides a display device, including the display panel provided in the first aspect.
According to the micro light-emitting diode display panel provided by the embodiment of the application, for the first color sub-pixels emitting the same color, at least two first micro light-emitting diodes are arranged in part of the first color sub-pixels, and one second micro light-emitting diode is arranged in the other part of the first color sub-pixels, so that the light-emitting brightness of the part of the first color sub-pixels can be increased, the integral brightness of the first color light in the micro light-emitting diode display panel can be adjusted, and meanwhile, the cost can be controlled.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic view of a micro light emitting diode display panel according to an embodiment of the present disclosure;
fig. 2 is an equivalent circuit diagram of a first pixel driving circuit according to the present application;
FIG. 3 is an equivalent circuit diagram of a first micro light emitting diode parallel connection method according to the present application;
fig. 4 is a schematic view of another micro led display panel according to an embodiment of the present disclosure;
fig. 5 is a schematic view of another micro led display panel according to an embodiment of the present disclosure;
fig. 6 is a schematic view of another micro led display panel according to an embodiment of the present disclosure;
FIG. 7 is a cross-sectional view of a portion of the area in FIG. 6;
FIG. 8 is a schematic view of another micro light emitting diode display panel according to an embodiment of the present disclosure;
fig. 9 is a schematic view of another micro led display panel according to an embodiment of the present disclosure;
fig. 10 is a schematic view of another micro led display panel according to an embodiment of the present disclosure;
fig. 11 is a schematic view of another micro led display panel according to an embodiment of the present disclosure;
fig. 12 is a schematic view of another micro led display panel according to an embodiment of the present disclosure;
fig. 13 is a schematic view of a display device according to an embodiment of the present application.
[ detailed description ] embodiments
For better understanding of the technical solutions of the present application, the following detailed descriptions of the embodiments of the present application are provided with reference to the accompanying drawings.
It should be understood that the embodiments described are only a few embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
In the description herein, it is to be understood that the terms "substantially", "approximately", "about", "substantially", and the like, as used in the claims and the examples herein, are intended to be generally accepted as not being precise, within the scope of reasonable process operation or tolerance.
It should be understood that although the terms first, second, third, etc. may be used to describe the sub-pixels, etc. in the embodiments of the present application, these sub-pixels, etc. should not be limited to these terms. These terms are only used to distinguish the sub-pixels and the like from each other. For example, the first sub-pixel may also be referred to as a second sub-pixel, and similarly, the second sub-pixel may also be referred to as a first sub-pixel without departing from the scope of the embodiments of the present application.
The applicant provides a solution to the problems of the prior art through intensive research.
The embodiment of the application provides a micro light-emitting diode display panel and a display device.
Fig. 1 is a schematic view of a micro light emitting diode display panel according to an embodiment of the present disclosure.
As shown in fig. 1, a micro led display panel 001 according to an embodiment of the present disclosure includes a plurality of sub-pixels, where the plurality of sub-pixels includes a first sub-pixel 01, a second sub-pixel 02, a third sub-pixel 03, and a fourth sub-pixel 04. The first subpixel 01 and the second subpixel 02 are subpixels of the same color, and the third subpixel 03 and the fourth subpixel 04 are subpixels of different colors and are different from the first subpixel 01 and the second subpixel 02. For example, the first subpixel 01 and the second subpixel 02 are both a first color subpixel, the third subpixel 03 is a second color subpixel, and the fourth subpixel 04 is a third color subpixel.
The first sub-pixel 01 includes a first pixel driving circuit 11 and at least two first micro light emitting diodes 12. In the same first sub-pixel 01, at least two first micro light emitting diodes 12 included therein are electrically connected to the first pixel driving circuit 11.
The second sub-pixel 02 includes a second pixel driving circuit 21 and a second micro light emitting diode 22. In the same second sub-pixel 02, a second micro light emitting diode 22 is electrically connected to the second pixel driving circuit 21.
The third sub-pixel 03 comprises a third pixel driving circuit 31 and a third micro light emitting diode 32, and the third micro light emitting diode 32 is electrically connected with the third pixel driving circuit 31 in the same third sub-pixel 03.
The fourth sub-pixel 04 comprises a fourth pixel driving circuit 41 and a fourth micro light emitting diode 42, and the fourth micro light emitting diode 42 included in the same fourth sub-pixel 04 is electrically connected to the fourth pixel driving circuit 41.
The first micro light emitting diode 12 and the second micro light emitting diode 22 have the same light emitting color, and specifically, the first micro light emitting diode and the second micro light emitting diode may be micro light emitting diodes of the same material and the same structure. The third micro light emitting diode 32 and the fourth micro light emitting diode 42 have different light emitting colors and are different from the light emitting colors of the first micro light emitting diode 12 and the second micro light emitting diode 22. For example, the light emitting colors of the first micro light emitting diode 12 and the second micro light emitting diode 22 are the first color, the light emitting color of the third micro light emitting diode 32 is the second color, and the light emitting color of the fourth micro light emitting diode 42 is the third color.
In the embodiment of the present application, for the first color sub-pixels emitting the same color, at least two first micro light emitting diodes are disposed in a part of the first color sub-pixels, and one second micro light emitting diode is disposed in another part of the first color sub-pixels, so that the luminance of the part of the first color sub-pixels can be increased, and further, the luminance of the first color light in the micro light emitting diode display panel can be adjusted, and the cost can be controlled.
Fig. 2 is an equivalent circuit diagram of a first pixel driving circuit according to an embodiment of the present disclosure.
In the present application, as shown in fig. 2, the first pixel driving circuit 11 may include a first driving transistor Td, a first reset transistor T0/T5, a first power voltage transistor T1, a first data voltage writing transistor T2, a first threshold grasping transistor T3, a first light emission controlling transistor T4, and a first storage capacitor C0. Note that, the first driving transistor Td, the first reset transistor T0/T5, the first power supply voltage transistor T1, the first data voltage writing transistor T2, the first threshold grasping transistor T3, and the first light emission controlling transistor T4 in the first pixel driving circuit 11 shown in fig. 2 are all P-type transistors. In other alternative embodiments, the first driving transistor Td, the first reset transistor T0/T5, the first power voltage transistor T1, the first data voltage writing transistor T2, the first threshold grasping transistor T3 and the first light emission controlling transistor T4 may all be N-type transistors, or may be P-type transistors and N-type transistors.
Wherein, an output terminal of the first reset transistor T0 is electrically connected to the control terminal of the first driving transistor Td; the output terminal of the other first reset transistor T5 is electrically connected to the anode of the first micro light emitting diode 12. An output terminal of the first power voltage transistor T1 is electrically connected to an input terminal of the light emission driving transistor Td, an input terminal V1 of the first power voltage transistor T1 is electrically connected to one plate of the first storage capacitor C0, and a control terminal of the first driving transistor Td is electrically connected to the other plate of the first storage capacitor C. The first data voltage writing transistor T2 has an input terminal V2 receiving the data voltage, and an output terminal electrically connected to an input terminal of the first driving transistor Td. The input terminal of the first threshold grasping transistor T3 is electrically connected to the output terminal of the first driving transistor Td, and the output terminal is electrically connected to the control terminal of the first driving transistor Td. The first light emitting control transistor T4 has an input terminal electrically connected to an output terminal of the first driving transistor Td, and an output terminal electrically connected to an anode of the first micro light emitting diode 12.
The operation of the first pixel driving circuit 11 shown in fig. 2 may include a reset phase, a data voltage writing phase and a light emitting phase.
In the reset phase, the first reset transistor T0 is turned on under the control of its control terminal S0, and its input terminal V0 receives a reset signal, and the reset signal is written into the control terminal of the first driving transistor Td. At this stage, if the first reset transistor T5 is turned on under the control of its control terminal S5 and its input terminal V5 receives a reset signal, the anode of the first micro light emitting diode 12 is also written with the reset signal.
In the data voltage writing phase, the first power supply voltage transistor T1 is turned off under the control of its control terminal S1 and the first light emission control transistor T4 is turned off under the control of its control terminal S4, the first data voltage writing transistor T2 is turned on under the control of its control terminal S2 and the first threshold grabbing transistor T3 is turned on under the control of its control terminal S3.
Taking the first driving transistor Td as a P-type transistor for illustration, the input terminal V2 of the first data voltage writing transistor T2 receives the data voltage Vdata, and since the data voltage Vdata has a higher potential than the reset signal stored in the first storage capacitor C0, the first driving transistor Td is turned on and the data voltage Vdata is written into the control terminal of the first driving transistor Td. Until the control terminal voltage of the first driving transistor Td is Vdata | Vth | the first driving transistor Td is turned off, and the first storage capacitor C0 can store the voltage Vdata | Vth | electrically connected to the control terminal of the first driving transistor Td at the end of the data voltage writing period.
In addition, in another embodiment of the present application, the control terminal S5 of the first reset transistor T5 receives a turn-off signal during the reset phase; in the data voltage writing phase, the control terminal S5 of the first reset transistor T5 receives the turn-on signal to control the first reset transistor T5 to turn on and the input terminal V5 of the first reset transistor T5 receives the reset signal, so that the anode of the first micro light emitting diode 12 is reset simultaneously in the data voltage writing phase.
In the light-emitting phase, the first data voltage writing transistor T2 is turned off under the control of its control terminal S2 and the first threshold grabbing transistor T3 is turned off under the control of its control terminal S3, the first power voltage transistor T1 is turned on under the control of its control terminal S1 and the first light-emitting control transistor T4 is turned on under the control of its control terminal S4. The input terminal V1 of the first power voltage transistor T1 receives the power voltage VDD, the power voltage is transmitted to the input terminal of the light emitting driving transistor Td, the voltage level of the power voltage VDD is greater than the voltage level of the data voltage Vdata, and the first driving transistor Td generates the light emitting driving current and transmits the light emitting driving current to the first micro light emitting diode 12 through the first light emitting controlling transistor T4. At this time, the light emitting driving current generated by the first driving transistor Td is: ids ═ K ═ VDD-Vdata ^ 2, where VDD is the power supply voltage received at the input of the first power supply voltage transistor T1, Vdata is the data voltage received at the input of the first data voltage write transistor T2, and K is a structural parameter.
It should be noted that fig. 2 only illustrates an equivalent circuit diagram of the first pixel driving circuit 11. The specific structure of the first pixel driving circuit 11 in the present application may also be in other forms. In the present application, the second pixel driving circuit 21, the third pixel driving circuit 31, and the fourth pixel driving circuit 41 may have the same circuit configuration as the first pixel driving circuit 11 or may have different circuit configurations.
In the embodiment of the present application, it can be seen from the above formula corresponding to the light-emitting driving current that the light-emitting driving current of the pixel driving circuit is determined by the power voltage VDD, and the signal line of the power voltage VDD is designed in a whole plane, which causes the actually received power voltage VDD to be different for the pixel driving circuits at different positions in the display panel due to the voltage drop, so that the light-emitting driving currents generated by the pixel driving circuits at different positions may be different, and the light-emitting luminances of the sub-pixels with the same color are different. In addition, other process steps may also cause the light-emitting driving current received by the pixel driving circuit at different positions to be different.
For the above reasons, there is a difference in the light-emitting driving current received by one micro light-emitting diode in the first color sub-pixel at different positions. According to the embodiment of the application, the distribution of the first sub-pixel 01 and the second sub-pixel 02 can be set according to the distribution condition of the light-emitting driving current received by the micro light-emitting diode arranged in the first color sub-pixel, and therefore the first light-emitting color uniformity corresponding to the first sub-pixel 01 and the second sub-pixel 02 in each area can be realized. That is, the first sub-pixel 01 may be disposed in a larger number in a region where the light-emitting driving current received by one micro light-emitting diode disposed in the first color sub-pixel is smaller, and the second sub-pixel 02 may be disposed in a larger number in a region where the light-emitting driving current received by one micro light-emitting diode disposed in the first color sub-pixel is larger, so that the luminance of the first color light in different regions may have uniformity.
Referring to fig. 1, in an embodiment of the present application, the first micro light emitting diode 12 and the second micro light emitting diode 22 are red micro light emitting diodes. The third micro light emitting diode 32 is a green micro light emitting diode, and the fourth micro light emitting diode is a blue micro light emitting diode. The red micro-led is limited by the characteristics of its material, and its light emitting efficiency is insufficient. Under the same driving current, the brightness is much lower than that of blue and green lamps. Therefore, in the embodiment of the present application, the number of the red micro leds is increased in the display panel to compensate the brightness of the red sub-pixel.
Fig. 3 is an equivalent circuit diagram of a first micro led parallel connection mode according to the present application.
In one embodiment of the present application, at least two first micro light emitting diodes 12 in the first sub-pixel 01 are connected in parallel or in series. Specifically, as shown in fig. 3, in the same first sub-pixel 01, anodes of at least two first micro light emitting diodes 12 included therein are all connected to the output terminal of the first pixel driving circuit 11, and cathodes of the at least two first micro light emitting diodes 12 are electrically connected together. And/or, as shown in fig. 2, in at least two first micro light emitting diodes 12 included in the same first sub-pixel 01, an anode of one first micro light emitting diode 12 is electrically connected to a cathode of another first micro light emitting diode, and an anode of the first micro light emitting diode 12 is connected to an output terminal of the first pixel driving circuit 11.
In an implementation manner of this embodiment, please refer to fig. 1 and fig. 3, all of the at least two first micro light emitting diodes 12 in all of the first sub-pixels 01 are electrically connected in parallel.
In another implementation manner of this embodiment, please refer to fig. 1 and fig. 2, all of the at least two first micro light emitting diodes 12 in all of the first sub-pixels 01 are electrically connected in series.
In another implementation manner of the present embodiment, please refer to fig. 1, fig. 2 and fig. 3, wherein at least two first micro light emitting diodes 12 in a part of the first sub-pixels 01 are electrically connected in parallel, and at least two first micro light emitting diodes 12 in another part of the first sub-pixels 01 are electrically connected in series.
In one embodiment of the present application, as shown in fig. 1, the micro light emitting diode display panel 001 provided by the present application includes a first region a1 and a second region a2, wherein a first sub-pixel 01 is disposed in the first region a1, and a second sub-pixel 02 is disposed in the second region a 2.
Referring to fig. 1, in an implementation manner of the embodiment of the present application, a micro light emitting diode display panel 001 includes a display area AA and a binding area BB. The display area AA has a luminous display function; the binding region BB includes a plurality of binding pins B1, and the binding pins B1 are bound with the integrated circuit board or the flexible circuit board. Wherein the first area a1 and the second area a2 are both disposed in the display area AA, and the first area a1 is far from the binding area B with respect to the second area a 2.
That is, in the present implementation, the first sub-pixel 01 is disposed in the first area a1 far from the binding area BB in the display area AA, and the second sub-pixel 02 is disposed in the second area a2 near the binding area BB in the display area AA. Since the first region a1 is far from the binding region BB with respect to the second region a2, the signal potential (e.g., the potential of the power supply voltage VDD) received by the pixel driving circuits provided in the first region a1 is smaller than the signal potential (e.g., the potential of the power supply voltage VDD) received by the pixel driving circuits in the second region a2, and the light emission driving current generated by the pixel driving circuits in the first region a1 is generally smaller than the light emission driving current generated by the pixel driving circuits in the second region a 2. In this implementation, by disposing the first sub-pixel 01 in the first region a1, that is, by setting the number of micro light emitting diodes in the first color sub-pixel in the first region a1 to be at least two, the first color light emission luminance in the first region a1 can be improved.
One specific technical solution of this implementation is that, with reference to fig. 1 and fig. 2, at least two micro light emitting diodes 12 included in a first sub-pixel 01 disposed in a first area a1 are electrically connected in series. Since the micro light emitting diodes are driven by current to emit light, in the first area a1 with a significantly smaller light emitting driving current, by connecting at least two first micro light emitting diodes 12 in series, it can be ensured that the light emitting driving currents received by the at least two first micro light emitting diodes 12 are all kept substantially unchanged, and thus the light emitting luminance of the at least two first micro light emitting diodes 12 connected in series and the luminance of the at least two first micro light emitting diodes 12 are significantly higher than the luminance of one first micro light emitting diode 12, thereby effectively compensating the light emitting luminance of the first color sub-pixel in the first area a 1.
Fig. 4 is a schematic view of another micro led display panel according to an embodiment of the present disclosure.
In one approach, with continued reference to fig. 1, the second area a2 may include the second sub-pixel 02, but not the first sub-pixel 01. As can be obtained from the above analysis, the light-emitting driving current generated by the second pixel driving circuit 21 included in the second sub-pixel 02 in the second area a2 is not significantly smaller than the preset value, so that even if a plurality of second micro light-emitting diodes 22 are not disposed in the second sub-pixel 02, it can be ensured that the difference between the brightness of the first color light corresponding to the second sub-pixel 02 in the second area a2 and the preset value is not too large, and the cost can be saved.
Alternatively, as shown in fig. 4, the second area a2 may include both the second sub-pixel 02 and the first sub-pixel 01. The density of the first sub-pixels 01 in the second region a2 may be less than the density of the first sub-pixels 01 in the first region a1, and/or the at least two micro light emitting diodes 12 included in the first sub-pixels 01 in the second region a2 are electrically connected in parallel.
By providing the first sub-pixel 01 in the second region a2, that is, by providing at least two micro light emitting diodes in a part of the first color sub-pixels of the second region a2, it is possible to solve the problem of low luminance of the first color light in the second region a2 due to low light emitting efficiency of the micro light emitting diodes in the first color sub-pixels.
When the density of the first sub-pixels 01 in the second region a2 is less than the density of the first sub-pixels 01 in the first region a1, the luminance of the first color light in the first region a1 and the second region a2 may be equalized.
Because the micro light-emitting diodes are driven by current to emit light, the sum of the brightness of the N micro light-emitting diodes connected in series is greater than the sum of the brightness of the N micro light-emitting diodes connected in parallel under the same light-emitting driving current. When the at least two first micro light emitting diodes 12 included in the first sub-pixel 01 in the second area a2 are connected in parallel, and the at least two first micro light emitting diodes 12 included in the first sub-pixel 01 in the first area a1 are connected in series, that is, the first micro light emitting diodes 12 electrically connected to the light emitting driving circuit generating the larger light emitting driving current are connected in parallel, and the first micro light emitting diodes 12 electrically connected to the light emitting driving circuit generating the smaller light emitting driving current are connected in series, the uniformity of the first color light in the first area a1 and the second area a2 can be better.
Fig. 5 is a schematic view of another micro led display panel according to an embodiment of the present disclosure.
Another specific technical solution of this implementation manner is to please refer to fig. 3 and 4, a first sub-pixel 01 is further disposed in the second area a2, and at least two micro light emitting diodes 12 included in the first sub-pixel 01 disposed in the second area a2 are electrically connected in parallel, and by disposing the first sub-pixel 01 in the second area a2, that is, disposing at least two micro light emitting diodes in a part of the first color sub-pixels of the second area a2, the problem of low luminance of the first color light in the second area a2 due to low light emitting efficiency of the micro light emitting diodes in the first color sub-pixels can be solved.
In one solution, referring to fig. 4, the first area a1 may include the first sub-pixel 01, but not include the second sub-pixel 02. That is, at least two micro light emitting diodes are disposed in all the first color sub-pixels in the first region a1, so that the problem of low luminance of the first color light in the first region a1 due to low light emitting efficiency of the micro light emitting diodes in the first color sub-pixels can be solved. At this time, the density of the first sub-pixels 01 in the first region a1 is necessarily greater than the density of the first sub-pixels 01 in the second region a2, and the luminance of the first color light in the first region a1 and the second region a2 can be equalized.
Alternatively, as shown in fig. 5, the first area a1 may include both the first sub-pixel 01 and the second sub-pixel 02. The density of the first sub-pixels 01 in the first region a1 may be greater than the density of the first sub-pixels 01 in the second region a2, and/or the at least two micro light emitting diodes 12 included in the first sub-pixels 01 in the first region a1 are electrically connected in series.
When the density of the first sub-pixels 01 in the second region a2 is less than the density of the first sub-pixels 01 in the first region a1, the luminance of the first color light in the first region a1 and the second region a2 may be equalized.
Because the micro light-emitting diodes are driven by current to emit light, the sum of the brightness of the N micro light-emitting diodes connected in series is greater than the sum of the brightness of the N micro light-emitting diodes connected in parallel under the same light-emitting driving current. When the at least two first micro light emitting diodes 12 included in the first sub-pixel 01 in the second area a2 are connected in parallel, and the at least two first micro light emitting diodes 12 included in the first sub-pixel 01 in the first area a1 are connected in series, that is, the first micro light emitting diodes 12 electrically connected to the light emitting driving circuit generating the larger light emitting driving current are connected in parallel, and the first micro light emitting diodes 12 electrically connected to the light emitting driving circuit generating the smaller light emitting driving current are connected in series, the uniformity of the first color light in the first area a1 and the second area a2 can be better.
Fig. 6 is a schematic view of another micro led display panel according to an embodiment of the present disclosure; FIG. 7 is a cross-sectional view of a portion of the area in FIG. 6; fig. 8 is a schematic view of another micro led display panel according to an embodiment of the present disclosure.
In another implementation of the embodiments of the present application, as shown in fig. 6, the first area a1 surrounds the second area a 2. The first region a1 further includes a third subpixel 03 and a fourth subpixel 04, and the second region a2 further includes a third subpixel 03 and a fourth subpixel 04. As shown in fig. 7, the third sub-pixel includes a third micro light emitting diode 32 and a third pixel driving circuit 31, and the offset distance between the third micro light emitting diode 32 included in the third sub-pixel 03 in the first area a1 and the output terminal of the third pixel driving circuit 31 is greater than the offset distance between the third micro light emitting diode 32 included in the third sub-pixel 03 in the second area a2 and the output terminal of the third pixel driving circuit 31; and/or the fourth sub-pixel comprises a fourth micro light-emitting diode 42 and a fourth pixel driving circuit 41, and the offset distance between the fourth micro light-emitting diode 42 included in the fourth sub-pixel 04 in the first area a1 and the output end of the fourth pixel driving circuit 41 is greater than the offset distance between the fourth micro light-emitting diode 42 included in the fourth sub-pixel 04 in the second area a2 and the output end of the fourth pixel driving circuit 41.
That is, in the present implementation, since the offset distance between the micro light emitting diodes in the first region a1 and the output terminals of the corresponding pixel driving circuits is greater than the offset distance between the micro light emitting diodes in the second region a2 and the output terminals of the corresponding pixel driving circuits, the light emitting driving current generated by the corresponding pixel driving circuits received by the micro light emitting diodes arranged in the first region a1 is generally smaller than the light emitting driving current generated by the corresponding pixel driving circuits received by the micro light emitting diodes in the second region a 2. In this implementation, by disposing the first sub-pixel 01 in the first region a1, that is, by setting the number of micro light emitting diodes in the first color sub-pixel in the first region a1 to be at least two, the first color light emission luminance in the first region a1 can be improved.
The manufacturing of the micro led display panel 001 usually adopts a bulk transfer technology, and the bulk transfer technology mainly includes that after a soft stamp picks up a batch of micro leds, the batch of micro leds are transferred to the upper side of the substrate, and in order to bind the micro leds with the pixel driving circuit, the soldering tin on the micro leds needs to be melted by heating the soft stamp. The process of heating the soft seal can cause the expansion of the soft seal, which can cause the deviation of at least part of the micro light-emitting diodes when being bound with the corresponding pixel driving circuits, and the edge position of the soft seal far away from the middle heated position expands more seriously. That is, in the edge position of the soft stamp far from the middle heated position, the offset distance between the micro light emitting diode and the corresponding pixel driving circuit is larger, so that the light emitting driving current received by the micro light emitting diode in the area by the pixel driving circuit is smaller.
In this implementation, the second area a2 corresponds to an area near the heated position of the soft stamp during the bulk transfer, the first area a1 corresponds to an area around the heated position of the soft stamp during the bulk transfer, that is, the large offset between the micro light emitting diode in the first area a1 and the corresponding pixel driving circuit is mainly caused by the large expansion of the soft stamp corresponding to the area during the bulk transfer, and the small or no offset between the micro light emitting diode in the second area a2 and the corresponding pixel driving circuit is caused by the small expansion of the soft stamp during the bulk transfer. From the above analysis, it can be seen that due to the huge transfer technical problem, the light emitting driving current received by the corresponding pixel driving circuit by the micro light emitting diodes in the first area a1 is generally smaller than the light emitting driving current received by the pixel driving circuit by the micro light emitting diodes in the second area a 2. In this implementation, by providing the first sub-pixel 01 in the first region a1, that is, by setting the number of micro light emitting diodes to be at least two in the first color sub-pixels in the first region a1, the first color light emission luminance in the first region a1 can be improved.
Because the size of the soft seal is limited, and a plurality of macro transfers are required, as shown in fig. 8, the display panel includes a plurality of repeating units CC, and the binding of the micro light emitting diode and the pixel driving circuit in one repeating unit CC is completed in one macro transfer process. Each of the repeating units CC includes a first region a1 and a second region a 2.
Fig. 9 is a schematic view of another micro led display panel according to an embodiment of the present disclosure.
One specific technical solution of this implementation is that, with reference to fig. 6 and fig. 2, at least two micro light emitting diodes 12 included in a first sub-pixel 01 disposed in a first area a1 are electrically connected in series. Because the micro light-emitting diodes are driven by current to emit light, in the first area a1 where the light-emitting driving current received by the micro light-emitting diodes is obviously small, by connecting at least two first micro light-emitting diodes 12 in series, the light-emitting driving current received by the at least two first micro light-emitting diodes 12 can be ensured to be basically unchanged, and the light-emitting brightness of the at least two first micro light-emitting diodes 12 connected in series and the brightness of the light-emitting diodes are obviously higher than the brightness of one first micro light-emitting diode 12, so that the light-emitting brightness of the first color sub-pixel in the first area a1 is effectively compensated.
In one approach, with continued reference to fig. 6, the second area a2 may include the second sub-pixel 02, but not the first sub-pixel 01. As can be obtained from the above analysis, the light-emitting driving current received by the second micro light-emitting diode 22 received by the second pixel driving circuit 21 included in the second sub-pixel 02 in the second area a2 is not significantly smaller than the preset value, so that even if a plurality of second micro light-emitting diodes 22 are not disposed in the second sub-pixel 02, it can be ensured that the difference between the brightness of the first color light corresponding to the second sub-pixel 02 in the second area a2 and the preset value is not too large, and the cost can be saved.
Alternatively, as shown in fig. 9, the second area a2 may include both the second sub-pixel 02 and the first sub-pixel 01. The density of the first sub-pixels 01 in the second region a2 may be less than the density of the first sub-pixels 01 in the first region a1, and/or the at least two micro light emitting diodes 12 included in the first sub-pixels 01 in the second region a2 are electrically connected in parallel.
By providing the first sub-pixel 01 in the second region a2, that is, by providing at least two micro light emitting diodes in a part of the first color sub-pixels of the second region a2, it is possible to solve the problem of low luminance of the first color light in the second region a2 due to low light emitting efficiency of the micro light emitting diodes in the first color sub-pixels.
When the density of the first sub-pixels 01 in the second region a2 is less than the density of the first sub-pixels 01 in the first region a1, the luminance of the first color light in the first region a1 and the second region a2 may be equalized.
Because the micro light-emitting diodes are driven by current to emit light, the sum of the brightness of the N micro light-emitting diodes connected in series is greater than the sum of the brightness of the N micro light-emitting diodes connected in parallel under the same light-emitting driving current. When the at least two first micro light emitting diodes 12 included in the first sub-pixel 01 in the second area a2 are connected in parallel, and the at least two first micro light emitting diodes 12 included in the first sub-pixel 01 in the first area a1 are connected in series, that is, the first micro light emitting diodes 12 having the larger light emitting driving current are connected in parallel, and the first micro light emitting diodes 12 having the smaller light emitting driving current are connected in series, the uniformity of the first color light in the first area a1 and the second area a2 can be better.
Fig. 10 is a schematic view of another micro led display panel according to an embodiment of the present disclosure.
Another specific technical solution of this implementation manner is to please refer to fig. 9 and 4, a first sub-pixel 01 is further disposed in the second region a2, and at least two micro light emitting diodes 12 included in the first sub-pixel 01 disposed in the second region a2 are electrically connected in parallel, and by disposing the first sub-pixel 01 in the second region a2, that is, disposing at least two micro light emitting diodes in a part of the first color sub-pixels of the second region a2, the problem of low luminance of the first color light in the second region a2 due to low light emitting efficiency of the micro light emitting diodes in the first color sub-pixels can be solved.
In one solution, referring to fig. 9, the first area a1 may include the first sub-pixel 01, but not include the second sub-pixel 02. That is, at least two micro light emitting diodes are disposed in all the first color sub-pixels in the first region a1, so that the problem of low luminance of the first color light in the first region a1 due to low light emitting efficiency of the micro light emitting diodes in the first color sub-pixels can be solved. At this time, the density of the first sub-pixels 01 in the first region a1 is necessarily greater than the density of the first sub-pixels 01 in the second region a2, and the luminance of the first color light in the first region a1 and the second region a2 can be equalized.
Alternatively, as shown in fig. 10, the first area a1 may include both the first subpixel 01 and the second subpixel 02. The density of the first sub-pixels 01 in the first region a1 may be greater than the density of the first sub-pixels 01 in the second region a2, and/or the at least two micro light emitting diodes 12 included in the first sub-pixels 01 in the first region a1 are electrically connected in series.
When the density of the first sub-pixels 01 in the second region a2 is less than the density of the first sub-pixels 01 in the first region a1, the luminance of the first color light in the first region a1 and the second region a2 may be equalized.
Because the micro light-emitting diodes are driven by current to emit light, the sum of the brightness of the N micro light-emitting diodes connected in series is greater than the sum of the brightness of the N micro light-emitting diodes connected in parallel under the same light-emitting driving current. When the at least two first micro light emitting diodes 12 included in the first sub-pixel 01 in the second area a2 are connected in parallel, and the at least two first micro light emitting diodes 12 included in the first sub-pixel 01 in the first area a1 are connected in series, that is, the first micro light emitting diodes 12 having the larger light emitting driving current are connected in parallel, and the first micro light emitting diodes 12 having the smaller light emitting driving current are connected in series, the uniformity of the first color light in the first area a1 and the second area a2 can be better.
Fig. 11 is a schematic view of another micro led display panel according to an embodiment of the present disclosure; fig. 12 is a schematic view of another micro led display panel according to an embodiment of the present disclosure.
In one embodiment of the present application, the plurality of first sub-pixels 01 are arranged in a ring shape. Specifically, as shown in fig. 11, the plurality of first subpixels 01 may be arranged in a rectangular ring shape. The plurality of first sub-pixels 01 may be arranged in a ring shape or other pattern ring shape. The arrangement shapes of the second sub-pixel 02, the third sub-pixel 03 and the fourth sub-pixel 04 are not particularly required. When the first sub-pixels 01 are annularly arranged, the compensation positions of the first color sub-pixels can be uniformly distributed in the display panel, so that the uniform light emission color of the first color sub-pixels in each area of the display panel is realized.
It should be further noted that, when the micro led display panel includes at least one first region a1 and one second region a2, the first sub-pixels 01 may be arranged in a ring shape in the first region a1 and the second region a2, respectively, that is, in a ring shape in the first region a1 and in a ring shape in the second region a 2.
In one implementation of the embodiment of the present application, the second sub-pixel 02 is located between any two adjacent first sub-pixels 01. That is, around the second sub-pixel 02, at least two first sub-pixels 01 are disposed.
In one embodiment of the present application, as shown in fig. 12, the first subpixels 01 are repeatedly arranged in the first repeating unit. The first repeating unit comprises three first sub-pixels 01, and the three first sub-pixels 01 included in the first repeating unit are arranged in a triangular shape. The arrangement shapes of the second sub-pixel 02, the third sub-pixel 03 and the fourth sub-pixel 04 are not particularly required. When the first sub-pixels 01 are arranged in a triangle, the compensation positions of the first color sub-pixels can be uniformly distributed in the display panel, so that the uniform light emission color of the first color sub-pixels in each area of the display panel is realized.
It should be further noted that, when the micro led display panel includes at least one first region a1 and one second region a2, the first sub-pixels 01 may be arranged in a triangular shape in the first region a1 and the second region a2, respectively, that is, in a triangular shape in the first region a1 and in a triangular shape in the second region a 2.
In one implementation of the embodiment of the present application, the second sub-pixel 02 is located between any two adjacent first sub-pixels 01. That is, around the second sub-pixel 02, at least two first sub-pixels 01 are disposed.
Fig. 13 is a schematic view of a display device according to an embodiment of the present disclosure.
As shown in fig. 13, the display device provided in the embodiment of the present application may be a mobile phone, and in addition, the display device provided in the embodiment of the present application may also be a display device such as a computer or a television. The display device provided by the embodiment of the present application includes the micro light emitting diode display panel 001 provided by any one of the above embodiments. In this application, the display device including the micro led display panel 001, for the first color sub-pixel emitting the same color, at least two first micro leds are disposed in a part of the first color sub-pixels, and a second micro led is disposed in another part of the first color sub-pixels, so that the luminance of the part of the first color sub-pixels can be increased, and further the luminance of the first color light in the micro led display panel can be adjusted, and meanwhile, the cost can be controlled.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the scope of protection of the present application.
Claims (12)
1. The micro light-emitting diode display panel is characterized by comprising a plurality of sub-pixels, wherein the plurality of sub-pixels comprise a first sub-pixel and a second sub-pixel, and the first sub-pixel and the second sub-pixel are sub-pixels with the same color;
the first sub-pixel comprises a first pixel driving circuit and at least two first micro light-emitting diodes; in the same first sub-pixel, the at least two first micro light-emitting diodes are electrically connected with the first pixel driving circuit;
the second sub-pixel comprises a second pixel driving circuit and a second micro light-emitting diode; in the same second sub-pixel, the second micro light-emitting diode is electrically connected with the second pixel driving circuit.
2. The micro light-emitting diode display panel of claim 1, wherein the first micro light-emitting diode and the second micro light-emitting diode are red light-emitting diodes.
3. The micro light-emitting diode display panel of claim 1, wherein the at least two first light-emitting diodes are connected in series or in parallel in the same first sub-pixel.
4. The micro light-emitting diode display panel of claim 3, wherein the micro light-emitting diode display panel comprises a first region and a second region, the first sub-pixel is disposed in the first region, and the second sub-pixel is disposed in the second region.
5. The micro light-emitting diode display panel of claim 4, wherein the micro light-emitting diode display panel comprises a binding region and a display region;
the binding region comprises a plurality of binding pins, and the binding pins are bound with the integrated circuit board or the flexible circuit board;
the first area and the second area are arranged in the display area, and the first area is far away from the binding area relative to the second area.
6. The micro light-emitting diode display panel of claim 4, wherein the plurality of sub-pixels comprises a third sub-pixel and a fourth sub-pixel;
the third sub-pixel comprises a third pixel driving circuit and a third micro light-emitting diode, and the third micro light-emitting diode is electrically connected with the output end of the third pixel driving circuit;
the fourth sub-pixel comprises a fourth pixel driving circuit and a fourth micro light-emitting diode, and the fourth micro light-emitting diode is electrically connected with the output end of the fourth pixel driving circuit;
wherein the first region surrounds the second region; and the offset distance between the third micro light-emitting diode in the first region and the output end of the corresponding electrically connected third pixel driving circuit is greater than the offset distance between the third micro light-emitting diode in the second region and the output end of the corresponding electrically connected third pixel driving circuit; and/or the offset distance between the fourth micro light-emitting diode in the first area and the output end of the fourth pixel driving circuit which is correspondingly and electrically connected is larger than the offset distance between the fourth micro light-emitting diode in the second area and the output end of the fourth pixel driving circuit which is correspondingly and electrically connected.
7. The micro light-emitting diode display panel of claim 5 or 6, wherein the at least two first micro light-emitting diodes are arranged in series in the first sub-pixel of the first region.
8. The micro light-emitting diode display panel according to claim 5 or 6, wherein the first sub-pixel is further disposed in the second region; and is disposed in the first sub-pixel in the second region, and the at least two first micro light emitting diodes are connected in parallel.
9. The micro led display panel of claim 1, wherein the first sub-pixels are arranged in a ring.
10. The micro light-emitting diode display panel of claim 1, wherein the plurality of first sub-pixels are repeatedly arranged in a first repeating unit, the first repeating unit comprises three first sub-pixels, and the three first sub-pixels are arranged in a triangle.
11. The micro light-emitting diode display panel of claim 9 or 10, wherein the second sub-pixel is located between any two adjacent first sub-pixels.
12. A display device comprising the micro light emitting diode display panel according to any one of claims 1 to 11.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114373423A (en) * | 2022-02-07 | 2022-04-19 | 厦门天马微电子有限公司 | Light-emitting panel, driving method thereof and display device |
| US20230006015A1 (en) * | 2020-04-14 | 2023-01-05 | CHONGQING BOE DISPLAY TECHNOLOGY Co.,Ltd. | Display panel and display device |
| WO2024065240A1 (en) * | 2022-09-28 | 2024-04-04 | 厦门市芯颖显示科技有限公司 | Display panel, display panel driving method and display apparatus |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101246669A (en) * | 2007-02-15 | 2008-08-20 | 北京巨数数字技术开发有限公司 | Scanning type LED display unit and method |
| CN106157877A (en) * | 2015-03-31 | 2016-11-23 | 上海和辉光电有限公司 | Dot structure and display device |
| CN108417149A (en) * | 2018-05-23 | 2018-08-17 | 武汉天马微电子有限公司 | Display panel, driving method thereof and display device |
| CN109584794A (en) * | 2019-01-25 | 2019-04-05 | 京东方科技集团股份有限公司 | A kind of display panel and display device |
| CN110070803A (en) * | 2019-04-22 | 2019-07-30 | 深圳市华星光电半导体显示技术有限公司 | A kind of pixel-driving circuit and display device |
| US11037912B1 (en) * | 2020-01-31 | 2021-06-15 | X Display Company Technology Limited | LED color displays with multiple LEDs connected in series and parallel in different sub-pixels of a pixel |
-
2021
- 2021-06-24 CN CN202110704728.2A patent/CN113362759B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101246669A (en) * | 2007-02-15 | 2008-08-20 | 北京巨数数字技术开发有限公司 | Scanning type LED display unit and method |
| CN106157877A (en) * | 2015-03-31 | 2016-11-23 | 上海和辉光电有限公司 | Dot structure and display device |
| CN108417149A (en) * | 2018-05-23 | 2018-08-17 | 武汉天马微电子有限公司 | Display panel, driving method thereof and display device |
| CN109584794A (en) * | 2019-01-25 | 2019-04-05 | 京东方科技集团股份有限公司 | A kind of display panel and display device |
| CN110070803A (en) * | 2019-04-22 | 2019-07-30 | 深圳市华星光电半导体显示技术有限公司 | A kind of pixel-driving circuit and display device |
| US11037912B1 (en) * | 2020-01-31 | 2021-06-15 | X Display Company Technology Limited | LED color displays with multiple LEDs connected in series and parallel in different sub-pixels of a pixel |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20230006015A1 (en) * | 2020-04-14 | 2023-01-05 | CHONGQING BOE DISPLAY TECHNOLOGY Co.,Ltd. | Display panel and display device |
| CN114373423A (en) * | 2022-02-07 | 2022-04-19 | 厦门天马微电子有限公司 | Light-emitting panel, driving method thereof and display device |
| CN114373423B (en) * | 2022-02-07 | 2023-09-15 | 厦门天马微电子有限公司 | Light-emitting panel, driving method thereof and display device |
| WO2024065240A1 (en) * | 2022-09-28 | 2024-04-04 | 厦门市芯颖显示科技有限公司 | Display panel, display panel driving method and display apparatus |
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|---|---|
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