CN110033732A - Micro light-emitting diode display panel, driving method and display device - Google Patents
Micro light-emitting diode display panel, driving method and display device Download PDFInfo
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- CN110033732A CN110033732A CN201910398639.2A CN201910398639A CN110033732A CN 110033732 A CN110033732 A CN 110033732A CN 201910398639 A CN201910398639 A CN 201910398639A CN 110033732 A CN110033732 A CN 110033732A
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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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Abstract
The invention discloses a micro light-emitting diode display panel, a driving method and a display device, which aim to solve the problem that a micro light-emitting diode in the prior art is too large in driving transient current and a power supply system is difficult to meet driving requirements. The micro light-emitting diode display panel comprises a light-emitting area, wherein the light-emitting area is divided into a plurality of light-emitting subareas, each light-emitting subarea comprises a plurality of pixels, and each light-emitting subarea is configured to sequentially emit light in a subarea within one frame of display time.
Description
Technical field
The present invention relates to field of display technology more particularly to a kind of micro- LED display panel, driving method and show
Showing device.
Background technique
Flat display apparatus is widely used because having many advantages, such as that high image quality, power saving, fuselage is thin and has a wide range of application
In the various consumer electrical products such as mobile phone, TV, personal digital assistant, digital camera, laptop, desktop computer,
As the mainstream in display device.
Micro- light emitting diode (micro Light Emitting Diode, Micro-LED) display is one kind one
The LED array of the high density microsize integrated on a substrate realizes the display that image is shown as display pixel, with big
The outdoor LED display screen of size is the same, each pixel can addressing, be operated alone and light.
But the transient current that micro- LED display panel of the prior art has driving is excessive, at present display panel
The problem of high transient current driving as the more difficult satisfaction of power-supply system requires.
Summary of the invention
The present invention provides a kind of micro- LED display panel, driving method and display device, to improve the prior art
In micro- light emitting diode exist driving transient current it is excessive, more difficult satisfactions of power-supply system drives the problem of requiring.
The embodiment of the present invention provides a kind of micro- LED display panel, including luminous zone, and the luminous zone is divided into
Multiple luminous subregions, each luminous subregion includes multiple pixels, and each luminous subregion is configured as showing picture in a frame
In the time of face, sequentially divisional light emission.
Correspondingly, the embodiment of the present invention also provides a kind of driving method of micro- LED display panel, the driving
Method is applied to micro- LED display panel as described in provided in an embodiment of the present invention；
The driving method includes:
It is shown in image time in a frame, sequentially to the luminous subregion load pulses signal of difference, control difference is described to shine
Subregion sequentially divisional light emission.
Correspondingly, the embodiment of the present invention also provides a kind of display device, including as described in provided in an embodiment of the present invention it is micro-
LED display panel.
The embodiment of the present invention has the beneficial effect that: micro- LED display panel provided in an embodiment of the present invention, including
Luminous zone, the luminous zone are divided into multiple luminous subregions, and each luminous subregion includes multiple pixels, and each described shine is divided
Area is configured as in frame display image time, sequentially divisional light emission, that is, in the embodiment of the present invention, luminous zone is divided into
Multiple luminous subregions make each luminous subregion sequentially shine in display, each moment only one or seldom in luminous subregion
Micro-LED be in display luminance, the micro-LED in other luminous subregions is in close state, in turn, can keep away
Exempt from all micro-LED of the same moment and be completely in open state, causes the transient current of driving excessive, power-supply system is more difficult
The problem of driving.
Detailed description of the invention
Fig. 1 is the schematic diagram that each luminous subregion of one kind provided in an embodiment of the present invention sequentially shines；
Fig. 2 is the driving current contrast schematic diagram that OLED is Micro-LED；
Fig. 3 is that a kind of area's gating transistor provided in an embodiment of the present invention is set to driving transistor and micro- light emitting diode
Between pixel schematic diagram；
Fig. 4 is that a kind of specific area's gating transistor provided in an embodiment of the present invention is set to driving transistor and micro- shines
Pixel schematic diagram between diode；
Fig. 5 be a kind of area's gating transistor provided in an embodiment of the present invention be set to the first power end and driving transistor it
Between pixel schematic diagram；
Fig. 6 is that a kind of specific area's gating transistor provided in an embodiment of the present invention is set to the first power end and driving is brilliant
Pixel schematic diagram between body pipe；
Fig. 7 be a kind of area's gating transistor provided in an embodiment of the present invention be set to the first power end and driving transistor it
Between and driving transistor and micro- light emitting diode between pixel schematic diagram；
Fig. 8 is that a kind of specific area's gating transistor provided in an embodiment of the present invention is set to the first power end and driving is brilliant
Pixel schematic diagram between body pipe and between driving transistor and micro- light emitting diode；
Fig. 9 is luminous subregion provided in an embodiment of the present invention along the schematic diagram arranged to extension；
Figure 10 is schematic diagram of the luminous subregion provided in an embodiment of the present invention along row to extension.
Specific embodiment
In order to enable the purposes, technical schemes and advantages of the embodiment of the present disclosure are clearer, below in conjunction with disclosure reality
The technical solution of the embodiment of the present disclosure is clearly and completely described in the attached drawing for applying example.Obviously, described embodiment is
A part of this disclosure embodiment, instead of all the embodiments.Based on described embodiment of the disclosure, this field is common
Technical staff's every other embodiment obtained under the premise of being not necessarily to creative work, belongs to the model of disclosure protection
It encloses.
Unless otherwise defined, the technical term or scientific term that the disclosure uses should be tool in disclosure fields
The ordinary meaning for thering is the personage of general technical ability to be understood." first ", " second " used in the disclosure and similar word are simultaneously
Any sequence, quantity or importance are not indicated, and are used only to distinguish different component parts." comprising " or "comprising" etc.
Similar word means that the element or object before the word occur covers the element or object for appearing in the word presented hereinafter
And its it is equivalent, and it is not excluded for other elements or object.The similar word such as " connection " or " connected " is not limited to physics
Or mechanical connection, but may include electrical connection, it is either direct or indirectly."upper", "lower",
"left", "right" etc. is only used for indicating relative positional relationship, and after the absolute position for being described object changes, then the relative position is closed
System may also correspondingly change.
In order to keep the following explanation of the embodiment of the present disclosure to understand and concise, known function and known portion is omitted in the disclosure
The detailed description of part.
The embodiment of the present invention provides a kind of micro- LED display panel, including luminous zone, luminous zone are divided into multiple
Shine subregion, and each luminous subregion includes multiple pixels, and each luminous subregion is configured as showing in image time in a frame, sequentially
Divisional light emission.Such as Fig. 1, it is followed successively by shows three periods in image time, each luminous subregion (figure in a frame from left to right
Darkened boxes region in 1) sequentially luminous schematic diagram, that is, in first time period, view on the left of Fig. 1, the of the upper left corner
One luminous subregion (darkened boxes region) shines, remaining subregion that shines is non-light emitting state；In second time period, such as Fig. 1
Intermediate view shines with the upper left corner adjacent second luminous subregion (darkened boxes region) of subregion that shine, remaining shines point
Area is non-light emitting state；In the third period, view on the right side of Fig. 1, the third on the right side of the second luminous subregion shines
Subregion (darkened boxes region) shines, remaining subregion that shines is non-light emitting state.
Micro- LED display panel provided in an embodiment of the present invention, including luminous zone, luminous zone are divided into multiple hairs
Light subregion, each luminous subregion includes multiple pixels, and each luminous subregion is configured as showing in image time in a frame, is sequentially divided
Area shine, that is, in the embodiment of the present invention, luminous zone is divided into multiple luminous subregions, display when, make each luminous subregion according to
Sequence shines, and the Micro-LED in each moment only one or few luminous subregion is in display luminance, other to shine point
Micro-LED in area is in close state, and in turn, can be completely in unlatching to avoid all Micro-LED of the same moment
The problem of state causes the transient current of driving excessive, power-supply system more difficult driving, that is, as shown in Fig. 2, when abscissa indicates
Between t, ordinate indicates current density, J, and general organic luminescent device (Organic Light Emitting Diode, OLED) adopts
(as shown in dashed line in figure 2) is driven with constant current, current density when normal luminous is usually in 10mA/cm2Within, it is based on
The considerations of to the luminous efficiency of Micro-LED device, generallys use pulse current (as solid line in figure 2) driving Micro-
LED component shines, and therefore, in display panel work, the transient state driving current of Micro-LED panel is the close of oled panel
2000 times, for the power-supply system of current display panel, it is difficult to meet the requirement of such high transient current.
In the specific implementation, in each luminous subregion and row independent can be set in the pixel of each luminous by stages
Scanning signal, the pixel in same luminous subregion are controlled by common area's signal control line.
In the specific implementation, shown in Figure 3, each pixel can specifically include micro- light emitting diode Micro-LED and
Pixel-driving circuit 1, pixel-driving circuit 1 is for driving micro- light emitting diode Micro-LED to shine；Pixel-driving circuit 1 wraps
Driving transistor T2 is included, driving transistor T2 is used to provide driving current for micro- light emitting diode Micro-LED, drives transistor
T2 and micro- light emitting diode Micro-LED series connection, also, transistor T2 and micro- light emitting diode Micro-LED is driven to be series at
Between first power end PVDD and second source end PVEE, is formed and driven between the first power end PVDD and second source end PVEE
Streaming current path；Pixel-driving circuit 1 further includes at least one area gating transistor T1, and area gating transistor T1 is in a series arrangement
It is set on driving current path, for controlling the conducting and cut-off in driving current path, each area gating of same luminous subregion
Transistor T1 couples same area's signal control line, and same district signal does not control for the area gating transistor T1 coupling of the luminous subregion of difference
Line；It is shown in image time in a frame, sequentially to different area's control signal wire input pulse signals, so that different luminous subregions
Sequentially divisional light emission.
In the embodiment of the present invention, by the way that area's gating transistor T1, and each area of same luminous subregion is arranged in each pixel
Gating transistor T1 is coupled to same area's signal control line, and the area gating transistor T1 of the luminous subregion of difference is coupled to not same district letter
Number control line, and then can may be implemented to make different luminous subregions by the control for the signal for transmitting each signal control line
Pixel shown, and then realize and shine subregion successively divisional light emission to the difference of display panel.
In the specific implementation, each pixel-driving circuit 1 can be set an area gating transistor T1, also can be set
The area Liang Ge gating transistor T1, area gating transistor T1 specifically may be electrically connected to the first power end PVDD and driving transistor T2
Between, it also may be electrically connected between driving transistor T2 and micro- light emitting diode Micro-LED, below by way of specific embodiment
It is illustrated.
Shown in Figure 3 in a kind of embodiment, pixel-driving circuit 1 includes an area gating transistor T1, should
The first pole of area gating transistor T1 is electrically connected with the first power end PVDD, the second pole of area gating transistor T1 and driving crystal
The first pole of pipe T2 is electrically connected, the grid and area's signal control line (area's signal control terminal in corresponding diagram 3 of area gating transistor T1
N it) is electrically connected, the second pole of driving transistor T2 is electrically connected with the first pole of micro- light emitting diode Micro-LED, micro- light-emitting diodes
The second electrode of pipe Micro-LED is electrically connected with second source end PVEE.
In the embodiment of the present invention, area gating transistor T1 is coupled between the first power end PVDD and driving transistor T2,
That is, control of the driving transistor T2 by area gating transistor T1, and then whether showing to the Micro-LED of the pixel may be implemented
Show and is controlled.
Specifically, shown in Figure 4, area gating transistor T1 be coupled to the first power end PVDD and driving transistor T2 it
Between when, which can also include switching transistor T3 and capacitor C, the grid of switching transistor T3 and scanning
Signal end Scan electrical connection, the first pole of switching transistor T3 is electrically connected with data signal end Data, and the of switching transistor T3
Two poles are electrically connected with the grid of driving transistor T2；One end of capacitor C with driving transistor T2 grid be electrically connected, the other end and
First power end PVDD electrical connection.The signal of area signal control terminal N load can be such as the clock signal on right side in Fig. 4, that is, only exists
The stage of the divisional light emission that shines loads useful signal to area signal control terminal N.
Shown in Figure 5 in another embodiment, pixel-driving circuit 1 includes an area gating transistor T1,
The first pole of area gating transistor T1 with driving transistor T2 the second pole be electrically connected, the second pole of area gating transistor T1 and
The first electrode of micro- light emitting diode Micro-LED is electrically connected, and the grid and area's signal control line of area gating transistor T1 is (corresponding
Area signal control terminal N in Fig. 5) electrical connection, the first pole of driving transistor T2 is electrically connected with the first power end PVDD, micro- to shine
The second electrode of diode Micro-LED is electrically connected with second source end PVEE.
In the embodiment of the present invention, area gating transistor T1 is coupled to driving transistor T2 and micro- light emitting diode Micro-
Between LED, that is, the control of micro- light emitting diode Micro-LED whether to shine by area gating transistor T1, and then may be implemented
To micro- light emitting diode Micro-LED of the pixel whether display controls.
Specifically, shown in Figure 6, area gating transistor T1 is coupled to driving transistor T2 and micro- light emitting diode
When between Micro-LED, which can also include switching transistor T3 and capacitor C, switching transistor T3
Grid be electrically connected with scanning signal end Scan, the first pole of switching transistor T3 is electrically connected with data signal end Data, switch
The second pole of transistor T3 is electrically connected with the grid of driving transistor T2；One end of capacitor C and the grid electricity of driving transistor T2
Connection, the other end are electrically connected with the first power end PVDD.Equally, the signal of area's signal control terminal N load can be such as right side in Fig. 6
Clock signal, that is, only the stage of the divisional light emission that shines to area signal control terminal N load useful signal.
Shown in Figure 7 in another embodiment, pixel-driving circuit 1 includes the area Liang Ge gating transistor T1,
Respectively the first area gating transistor T11 and the second area gating transistor T12, the first pole of the first area gating transistor T11 with
Second pole of the first power end PVDD electrical connection, the first area gating transistor T11 is electrically connected with the first pole of driving transistor T2,
The first pole of second area gating transistor T12 is electrically connected with the second pole of driving transistor T2, the second area gating transistor T12's
Second pole is electrically connected with the first electrode of micro- light emitting diode Micro-LED, the grid and second of the first area gating transistor T11
The area the grid Jun Yu signal control line (the area signal control terminal N in corresponding diagram 7) of area gating transistor T12 is electrically connected, micro- to shine
The second electrode of diode Micro-LED is electrically connected with second source end PVEE.
In the embodiment of the present invention, it is respectively provided with area gating transistor T1 in the two sides of driving transistor T2, and then make micro- shine
The control of diode Micro-LED whether to shine by the first area gating transistor T11 and the second area gating transistor T12,
And then may be implemented to micro- light emitting diode Micro-LED of the pixel whether display controls.
Specifically, it is shown in Figure 8, when driving the two sides of transistor T2 to be respectively provided with area gating transistor T1, the pixel
Driving circuit 1 can also include switching transistor T3 and capacitor C, the grid and scanning signal end Scan of switching transistor T3
Electrical connection, the first pole of switching transistor T3 are electrically connected with data signal end Data, the second pole of switching transistor T3 and driving
The grid of transistor T2 is electrically connected；One end of capacitor C is electrically connected with the grid of driving transistor T2, the other end and the first power end
PVDD electrical connection.Equally, the signal of area's signal control terminal N load can be such as the clock signal on right side in Fig. 8, that is, only in the hair
The stage of light divisional light emission loads useful signal to area signal control terminal N.
In the specific implementation, the array of M row N column is constituted positioned at multiple pixels of luminous zone, each luminous subregion includes battle array
The pixel of m row n column in column, wherein m=M, n < N, and M, N, m and n are positive integer.That is, as shown in figure 9, the present invention is implemented
In example, the pixel of micro- LED display panel, which is divided into, to be extended along pixel column direction and along the more of pixel row direction arrangement
The subregion that shines is arranged, by making the luminous subregion of multiple row successively shine, micro- LED display panel can be realized, and sequentially subregion is sent out
Light.
In the specific implementation, the array of M row N column is constituted positioned at multiple pixels of luminous zone, each luminous subregion includes battle array
The pixel of the m row n column of column, wherein n=N, m < M, and M, N, m and n are positive integer.That is, shown in Figure 10, the present invention is real
It applies in example, the pixel of micro- LED display panel, which is divided into, to be extended along pixel row direction and along pixel column direction arrangement
Multirow shines subregion, and by making the multirow subregion that shines successively shine, micro- LED display panel sequentially subregion can be realized
It shines.
In the specific implementation, the array of M row N column is constituted positioned at multiple pixels of luminous zone, each luminous subregion includes battle array
The pixel of the m row n column of column, wherein m < M, n < N, and M, N, m and n are positive integer.That is, shown in Figure 1, the present invention is implemented
In example, the pixel of micro- LED display panel is divided into multiple block-like luminous subregions, by making multiple block-like hairs
Light subregion successively shines, and micro- LED display panel sequentially divisional light emission can be realized.
In the specific implementation, pixel includes micro- light emitting diode, and m and n meet following condition:
M*n < I/ (j*A), wherein I is that external circuit is the maximum transient current that multiple pixels in luminous zone provide, j
For the current density preset value of the driving current of the micro- lumination of light emitting diode of driving, A is the light-emitting area of micro- light emitting diode.
In the embodiment of the present invention, m*n < I/ (j*A), that is, synchronization, the electric current that the power-supply system of display panel provides is only
Micro- light emitting diode for the subregion that currently shines uses, due to synchronization, the number of micro- light emitting diode in luminance
Measure less, overall driving current is smaller, and then the power-supply system of the prior art can be made to may be implemented to drive micro- light emitting diode
It carries out luminous, micro- LED display panel is made to be easier to drive, convenient for micro- LED display panel to medium-and-large-sizedization
Development；In addition, shining simultaneously compared to more micro- light emitting diode, in the identical situation of the driving current that power-supply system provides
Under, in the embodiment of the present invention, since synchronization only has less micro- lumination of light emitting diode, and then each micro- light emitting diode
The driving current for getting that micro- light emitting diode is bigger compared with prior art can be divided, shining for micro- light emitting diode can also be promoted
Efficiency reduces the display power consumption of display panel.
Wherein, the current density preset value of the driving current of micro- lumination of light emitting diode is that micro- light emitting diode shines
Efficiency and power consumption within an acceptable range when driving current minimum value.
In the specific implementation, j >=20A/cm2.That is, in the embodiment of the present invention, due in synchronization, the only micro- hair in part
Optical diode shines, and then each micro- light emitting diode is available to bigger current density, is conducive to micro- light emitting diode
It is carried out under preferable luminous efficiency state luminous.
Based on the same inventive concept, the embodiment of the present invention also provides a kind of driving side of micro- LED display panel
Method, driving method are applied to such as micro- LED display panel provided in an embodiment of the present invention；
Driving method includes:
It is shown in image time in a frame, sequentially to the luminous subregion load pulses signal of difference, controls different luminous subregions
Sequentially divisional light emission.
Micro- LED display panel provided in an embodiment of the present invention, including luminous zone, luminous zone are divided into multiple hairs
Light subregion, each luminous subregion includes multiple pixels, and each luminous subregion is configured as showing in image time in a frame, is sequentially divided
Area shine, that is, in the embodiment of the present invention, luminous zone is divided into multiple luminous subregions, display when, make each luminous subregion according to
Sequence shines, and the micro-LED in each moment only one or few luminous subregion is in display luminance, other to shine point
Micro-LED in area is in close state, and in turn, can be completely in unlatching to avoid all micro-LED of the same moment
The problem of state causes the transient current of driving excessive, power-supply system more difficult driving.
In the specific implementation, the time of each luminous subregion return pulse signal meets the following conditions:
T=1/f, t=T/N, wherein T is the scan period of a frame picture, and f is display frame frequency, and t is opening for luminous subregion
It opens the time, N is the quantity of the luminous subregion of display panel.In each display cycle, the gating transistor of each luminous subregion is opened
It is identical to open number.
Based on the same inventive concept, the embodiment of the present invention also provides a kind of display device, including as the embodiment of the present invention mentions
The micro- LED display panel supplied.
In the specific implementation, micro- LED display panel can be used as backlight, and display device further includes and micro- hair
The liquid crystal display that optical diode display panel is oppositely arranged.
In the specific implementation, luminous zone is viewing area, and pixel is display pixel.
The embodiment of the present invention has the beneficial effect that: micro- LED display panel provided in an embodiment of the present invention, including
Luminous zone, luminous zone are divided into multiple luminous subregions, and each luminous subregion includes multiple pixels, and each luminous subregion is configured as
One frame shows in image time, sequentially divisional light emission, that is, in the embodiment of the present invention, luminous zone is divided into multiple luminous subregions,
In display, each luminous subregion is made sequentially to shine, at the micro-LED in each moment only one or few luminous subregion
It is in close state in the micro-LED in display luminance, other luminous subregions, it in turn, can be to avoid the same moment
The problem of all micro-LED are completely in open state, cause the transient current of driving excessive, power-supply system more difficult driving.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (13)
1. a kind of micro- LED display panel, which is characterized in that including luminous zone, the luminous zone is divided into multiple shine
Subregion, each luminous subregion includes multiple pixels, and each luminous subregion is configured as showing in image time in a frame,
Sequentially divisional light emission.
2. micro- LED display panel as described in claim 1, which is characterized in that the pixel includes micro- light-emitting diodes
Pipe and pixel-driving circuit, the pixel-driving circuit is for driving micro- lumination of light emitting diode；
The pixel-driving circuit includes driving transistor, and the driving transistor is used to provide drive for micro- light emitting diode
Streaming current, the driving transistor and micro- light emitting diode series connection, also, the driving transistor and described micro- luminous two
Pole pipe is series between the first power end and second source end, is formed between first power end and the second source end
Driving current path；
The pixel-driving circuit further includes at least one area's gating transistor, and area's gating transistor is arranged in a series arrangement
In on the driving current path, for controlling the conducting and cut-off in the driving current path, the same luminous subregion
Each area's gating transistor couples same area's signal control line, area's gating transistor coupling of the different luminous subregions
Different area's signal control lines；It is shown in image time in a frame, sequentially inputs arteries and veins to different area's control signal wires
Signal is rushed, so that the different luminous subregion sequentially divisional light emission.
3. micro- LED display panel as claimed in claim 2, which is characterized in that
The pixel-driving circuit includes area's gating transistor, the first pole of area's gating transistor and described the
The electrical connection of one power end, the second pole of area's gating transistor are electrically connected with the first pole of the driving transistor, the area
The grid of gating transistor is electrically connected with area's signal control line, the second pole of the driving transistor and described micro- luminous two
First pole of pole pipe is electrically connected, and the second electrode of micro- light emitting diode is electrically connected with the second source end, alternatively, described
First pole of area's gating transistor with it is described driving transistor the second pole be electrically connected, the second pole of area's gating transistor and
The first electrode of micro- light emitting diode is electrically connected, and the grid of area's gating transistor is electrically connected with area's signal control line
Connect, it is described driving transistor the first pole be electrically connected with first power end, the second electrode of micro- light emitting diode and
The second source end electrical connection；
Alternatively, the pixel-driving circuit includes two area's gating transistors, respectively first area's gating transistor and the
Two area's gating transistors, the first pole of firstth area gating transistor are electrically connected with first power end, firstth area
Second pole of gating transistor is electrically connected with the first pole of the driving transistor, the first pole of secondth area gating transistor
It is electrically connected with the second pole of the driving transistor, the second pole of secondth area gating transistor and micro- light emitting diode
First electrode electrical connection, the grid of the grid of firstth area gating transistor and secondth area gating transistor is and institute
The electrical connection of area's signal control line is stated, the second electrode of micro- light emitting diode is electrically connected with the second source end.
4. micro- LED display panel as described in claim 1, which is characterized in that positioned at the described more of the luminous zone
A pixel constitutes the array of M row N column, and each luminous subregion includes the pixel of the m row n column in the array, wherein m=
M, n < N, and M, N, m and n are positive integer.
5. micro- LED display panel as described in claim 1, which is characterized in that positioned at the described more of the luminous zone
A pixel constitutes the array of M row N column, and each luminous subregion includes the pixel of the m row n column of the array, wherein n=N, m
< M, and M, N, m and n are positive integer.
6. micro- LED display panel as described in claim 1, which is characterized in that positioned at the described more of the luminous zone
A pixel constitutes the array of M row N column, and each luminous subregion includes the pixel of the m row n column of the array, wherein and m < M, n <
N, and M, N, m and n are positive integer.
7. such as the described in any item micro- LED display panels of claim 4-6, which is characterized in that the pixel includes micro-
Light emitting diode, m and n meet following condition:
m*n<I/(j*A)
Wherein, it is the maximum transient current that the multiple pixel in the luminous zone provides that I, which is external circuit, and j is driving institute
The current density preset value of the driving current of micro- lumination of light emitting diode is stated, A is the light-emitting area of micro- light emitting diode.
8. micro- LED display panel as claimed in claim 7, which is characterized in that
j≥20A/cm2。
9. a kind of driving method of micro- LED display panel, which is characterized in that the driving method is applied to such as right
It is required that the described in any item micro- LED display panels of 1-8；
The driving method includes:
It is shown in image time in a frame, sequentially to the luminous subregion load pulses signal of difference, the different luminous subregions of control
Sequentially divisional light emission.
10. driving method as claimed in claim 9, which is characterized in that the time of each luminous subregion return pulse signal
Meet the following conditions:
T=1/f, t=T/N, wherein T is the scan period of a frame picture, and f is display frame frequency, and t is opening for the luminous subregion
It opens the time, N is the quantity of the luminous subregion of the display panel.
11. a kind of display device, which is characterized in that including the described in any item micro- diode displayings of such as claim 1-8
Panel.
12. display device as claimed in claim 11, which is characterized in that micro- LED display panel is as backlight
Source, the display device further include the liquid crystal display being oppositely arranged with micro- LED display panel.
13. display device as claimed in claim 11, which is characterized in that the luminous zone is viewing area, and the pixel is aobvious
Show pixel.
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