CN107633813B - A kind of electroluminescence display panel, its driving method and display device - Google Patents
A kind of electroluminescence display panel, its driving method and display device Download PDFInfo
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Abstract
The invention discloses a kind of electroluminescence display panel, its driving method and display devices, it is arranged by the grouping to control circuit, so that different group control circuits are respectively by different control line traffic controls, so that different group control circuits can export different luminous signals, the working condition of respective pixel unit is controlled by different luminous signals；Therefore, when needing low resolution to show, without on the basis of changing the structure of various circuits in display panel, pass through the control of each group control circuit, the control respectively to each pixel unit can be realized, to help to realize without showing that the pixel unit of image is in non-display state, while realizing low resolution display, the power consumption of system is effectively reduced.
Description
Technical field
The present invention relates to field of display technology, espespecially a kind of electroluminescence display panel, its driving method and display device.
Background technique
Organic Light Emitting Diode (Organic Light Emitting Diode, OLED) display, is a kind of self-luminous
Display, and have the characteristics that frivolous, coloration is high, visual angle is wide and reaction speed is fast, have in field of display technology huge
Development prospect.Wherein, the structure as shown in Figure 1, be provided in display area 1 of OLED display panel is arranged in array multiple
Pixel unit 2, and each pixel unit 2 includes pixel control circuit (not shown), and the hair connecting with pixel control circuit
Light unit (not shown), luminescence unit shines under the control of pixel control circuit, to realize the spontaneous of OLED display
Light function.Although OLED display can have very high display resolution in normal display, it is also required to low resolution sometimes
Rate is shown, such as when standby mode, word read or not enough power supply, to reduce the power consumption of system.It is how real based on this
While existing low resolution display, system power dissipation is effectively reduced, is those skilled in the art's technical problem urgently to be resolved.
Summary of the invention
The embodiment of the invention provides a kind of electroluminescence display panel, its driving method and display devices, to solve
While how realizing low resolution display in the prior art, the problem of system power dissipation is effectively reduced.
The embodiment of the invention provides a kind of electroluminescence display panels, comprising: display area and neighboring area；Described
Display area is provided with the multiple pixel units being arranged in array；It is provided with and each pixel unit in the neighboring area
It is expert at and/or the control circuit of luminous signal that column is correspondingly arranged；Wherein,
The luminous signal line connecting with each control circuit is additionally provided in the display area；
All the control circuit is divided at least two groups；
The control line being correspondingly arranged with control circuit described in each group is additionally provided in the neighboring area；Each control
The setting of line mutually insulated；
Control circuit described in each group, under the control of the control signal of correspondence control line input, to corresponding institute
State luminous signal line input luminous signal, the working condition of the corresponding each pixel unit of control.
On the other hand, the embodiment of the invention also provides a kind of display devices, comprising: on provided in an embodiment of the present invention
State electroluminescence display panel.
On the other hand, the embodiment of the invention also provides a kind of such as above-mentioned electroluminance display provided in an embodiment of the present invention
The driving method of panel, comprising:
Receive the signal of a frame image to be displayed；
To control line input control signal corresponding with each group control circuit, so that each group control circuit is to corresponding
Luminous signal line inputs luminous signal, the working condition of the corresponding each pixel unit of control；
Display treated image.
The present invention has the beneficial effect that:
A kind of electroluminescence display panel, its driving method and display device provided in an embodiment of the present invention, comprising: display
Region and neighboring area；The multiple pixel units being arranged in array are provided in display area；Neighboring area be provided with respectively
The control circuit of pixel unit being expert at and/or be correspondingly arranged with the column of each pixel unit；Wherein, display area also
It is provided with the luminous signal line connecting with each control circuit；Whole control circuits are divided at least two groups；In neighboring area
It is additionally provided with the control line being correspondingly arranged with each group control circuit；Each control line mutually insulated setting；Each group control circuit, is used for
Under the control of the control signal of corresponding control line input, luminous signal, the corresponding each picture of control are inputted to corresponding luminous signal line
The working condition of plain unit；Therefore, it is arranged by the grouping to control circuit, so that different group control circuits are respectively by different
Line traffic control is controlled, so that different group control circuits can export different luminous signals, passes through different luminous signal controls
The working condition of respective pixel unit processed；Therefore, when needing low resolution to show, without changing various electricity in display panel
On the basis of the structure on road, by the control of each group control circuit, the control respectively to each pixel unit can be realized, to have
Help realize without showing that the pixel unit of image is in non-display state, while realizing low resolution display, be effectively reduced
The power consumption of system.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of OLED display panel in the prior art；
Fig. 2 to Fig. 6 is respectively a kind of structural schematic diagram of the electroluminescence display panel provided in the embodiment of the present invention；
Fig. 7 a to Fig. 7 d is respectively that each pixel unit provided in the embodiment of the present invention shows the work of time in different frame
State；
Fig. 8 is the concrete structure schematic diagram of the multiplexer circuit provided in the embodiment of the present invention；
Fig. 9 and Figure 10 is respectively the flow chart of the driving method provided in the embodiment of the present invention；
Figure 11 is a kind of structural schematic diagram of the display device provided in the embodiment of the present invention.
Specific embodiment
Below in conjunction with attached drawing, to a kind of electroluminescence display panel provided in an embodiment of the present invention, its driving method and
The specific embodiment of display device is described in detail.It should be noted that described embodiment is only the present invention
A part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not having
Every other embodiment obtained under the premise of creative work is made, shall fall within the protection scope of the present invention.
Structure as shown in Figure 1, during the display of OLED display, standby mode, word read or electricity not
When foot, in order to reduce the display power consumption of system, it can show that being reduced to low resolution shows from high-resolution, for example,
Resolution ratio 1080*1920 when by normal display is reduced to 540*960, i.e., reduces by 2 times respectively in line direction and column direction；And
And in order to realize that low resolution is shown, for without showing that the pixel unit of image is generally to pass through pixel control circuit
Control to reduce the luminescence unit electric current required in normal luminous so that luminescence unit not shine or light emission luminance it is very low,
To realize that low resolution is shown；However, due to do not need display image pixel unit in pixel control circuit be also at
Working condition causes system power dissipation that cannot further be reduced.
Therefore, how a kind of electroluminescence display panel in the embodiment of the present invention provides is realizing low point for solving
While resolution is shown, the problem of power consumption of system is effectively reduced.
Specifically, above-mentioned electroluminescence display panel provided in an embodiment of the present invention, as shown in Figures 2 to 6, wherein in figure
The partial region of electroluminescence display panel is illustrated only, electroluminescence display panel may include: display area 10 and periphery
Region 20；The multiple pixel units 11 being arranged in array are provided in display area 10；It is provided with and each picture in neighboring area 20
Plain unit 11 be expert at and/or the control circuit 21 of luminous signal that column is correspondingly arranged；Wherein,
The luminous signal line 12 connecting with each control circuit 21 is additionally provided in display area 10；
Whole control circuits 21 are divided at least two groups；
The control line 22 being correspondingly arranged with each group control circuit is additionally provided in neighboring area 20；Each control line 22 is mutually
Insulation set；
Each group control circuit, under the control for the control signal that corresponding control line 22 inputs, to corresponding luminous signal
Line 12 inputs luminous signal, the working condition of the corresponding each pixel unit 11 of control.
Above-mentioned electroluminescence display panel provided in an embodiment of the present invention is arranged by the grouping to control circuit 21, is made
Different groups of control circuits are controlled by different control line 22 respectively so that different group control circuits can export it is different
Luminous signal controls the working condition of respective pixel unit 11 by different luminous signals；Therefore, needing low resolution aobvious
When showing, without passing through the control of each group control circuit, Ji Keshi on the basis of changing the structure of various circuits in display panel
Now to the control respectively of each pixel unit 11, such as when whole control circuits 21 are divided into two groups, one group of control circuit control
The working condition for making corresponding pixel unit 11 is display state, and another group of control circuit then controls corresponding pixel unit 11
Working condition is non-display state, i.e., partial pixel unit shows image, so that the low resolution for helping to realize image is shown,
Effectively reduce the power consumption of system.
In the specific implementation, by control circuit 21 be with each pixel unit 11 be expert at and/or column is corresponding sets
It sets, and control circuit 21 is the control circuit 21 of luminous signal, therefore, in above-mentioned electroluminescent hair provided in an embodiment of the present invention
In light display panel, as shown in Figures 2 to 6, according to the type of luminous signal, control circuit 21 may include: light emitting control letter
Number generative circuit 21a and/or multiplexer circuit 21b；The generative circuit 21a of LED control signal and each pixel unit 11
It is expert at and is correspondingly arranged；Multiplexer circuit 21b and the column of each pixel unit 11 are correspondingly arranged.
Specifically, according to the type of luminous signal, the concrete composition of control circuit 21 can have following three kinds of situations: first
Kind situation controls picture as shown in Fig. 2, control circuit 21 includes: the generative circuit 21a of LED control signal in the row direction
The working condition of plain unit 11, so luminous signal is LED control signal, corresponding luminous signal line 12 is light emitting control letter
Number line 12a, control line 22 are clock cable 22a；Second situation, as shown in figure 3, control circuit 21 includes: multi-path choice
Circuit 21b controls the working condition of pixel unit 11 in a column direction, so luminous signal is data-signal, corresponding hair
Optical signal line 12 is data signal line 12b, and control line 22 is thread switching control 22b；The first situation and second situation are only
Control circuit 21 is grouped on line direction or column direction, i.e., only can control the pixel unit on line direction or column direction
11, and when display resolution is when line direction and column direction reduce by twice respectively, by the first situation and second situation, only
Can control the working condition of the pixel unit 11 on a direction, and the working condition of the pixel unit 11 in another direction then without
Method is controlled, prevent system power dissipation is from further being reduced；Therefore, in order in line direction and column direction two
The working condition that pixel unit 11 can be controlled on direction, proposes the third situation, as shown in Figures 4 to 6, control circuit
21 include: the generative circuit 21a and multiplexer circuit 21b of LED control signal, at this point, luminous signal includes: light emitting control
Signal and data-signal, corresponding luminous signal line 12 include: LED control signal line 12a and data signal line 12b, control line
22 include: clock cable 22a and thread switching control 22b.
Optionally, the first situation, in above-mentioned electroluminescence display panel provided in an embodiment of the present invention, such as Fig. 2 institute
Show, control circuit 21 may include: the generative circuit 21a of LED control signal；
Luminous signal line 12 is LED control signal line 12a；
Control line 22 is clock cable 22a.
Optionally, second situation, in above-mentioned electroluminescence display panel provided in an embodiment of the present invention, such as Fig. 3 institute
Show, control circuit 21 may include: multiplexer circuit 21b；
Luminous signal line 12 is data signal line 12b；
Control line 22 is thread switching control 22b.
Optionally, the third situation, in above-mentioned electroluminescence display panel provided in an embodiment of the present invention, extremely such as Fig. 4
Shown in Fig. 6, control circuit 21 may include: the generative circuit 21a and multiplexer circuit 21b of LED control signal；
Luminous signal line 12 includes: LED control signal line 12a and data signal line 12b；
Control line 22 includes: clock cable 22a and thread switching control 22b.
Specifically, due to the structure of multiplexer circuit 21b and generative circuit 21a, with multi-path choice in the prior art
Circuit 21b is identical with the structure of generative circuit 21a and the connection type of clock cable 22a and generative circuit 21a, switch
The connection type of control line 22b and multiplexer circuit 21b, are the same as those in the prior art, and each multiplexer circuit 21b
It is also same as the prior art with the basic functional principle of each generative circuit 21a；Therefore, for multiplexer circuit 21b and life
It can be found in the prior art at the structure and working principle of circuit 21a, repeating place, therefore not to repeat here.
Below just with structure shown in fig. 4 to fig. 6, to above-mentioned electroluminescence display panel provided in an embodiment of the present invention into
Row is described in detail.
In the specific implementation, it takes the mobile phone as an example, in mobile phone not enough power supply, in order to reduce the use of electricity, extends and use
Display resolution can be shown that being reduced to low resolution shows from normal high-resolution by the time；In addition, only being carried out in mobile phone
When text importing, since the display of text does not need higher resolution ratio and can be realized to clearly show that, it is possible to carry out low point
Resolution shows text；Certainly, in standby mode, or when only needing to show time or simple image, low resolution can also be carried out
Display.
It specifically, can be aobvious according to electroluminescent in order to reduce the power consumption of system when low resolution shows image
The resolution ratio for showing the image of Display panel carries out special setting to the working condition of each pixel unit 11；Such as: in electroluminescent hair
When light display panel display of high resolution images, need to guarantee that the working condition of each pixel unit 11 is display state, i.e., often
Pixel control circuit in a pixel unit 11 is in working condition；And low resolution figure is shown in electroluminescence display panel
When picture, then not needing to make the working condition of each pixel unit 11 is display state, can be according to from high-resolution to low
The reduction multiple of resolution ratio is adjusted and controls to the working condition of each pixel unit 11, so as to need to show the picture of image
The working condition of plain unit 11 is display state, without showing that the working condition of pixel unit 11 of image is non-display shape
State, the power consumption of system is effectively reduced, extend display device uses the time.
Specifically, in order to realize that low resolution is shown, the power consumption of system is reduced, on provided in an embodiment of the present invention
It states in electroluminescence display panel, each group control circuit, is specifically used for controlling when normal display resolution shows picture corresponding
Under the control for the control signal that line 22 processed inputs, luminous signal, the corresponding each pixel list of control are inputted to corresponding luminous signal line 12
The working condition of member 11 is display state；When display resolution reduces, in the control for the control signal that corresponding control line 22 inputs
Under system, luminous signal is inputted to corresponding luminous signal line 12, control section pixel unit 11 shows the work in the time in a frame
State is non-display state；Therefore, either normally display image or low resolution show image, by control circuit
Grouping setting may be implemented, so that can also realize low resolution while guaranteeing that electroluminescence display panel is normally shown
Rate is shown, so that the power consumption of system be effectively reduced.
Preferably, the working condition of control section pixel unit 11 is non-display shape in order to when display resolution reduces
State, the working condition of control section pixel unit 11 are display state, aobvious in above-mentioned electroluminescent provided in an embodiment of the present invention
Show in panel, as shown in Figures 4 to 6, whole control circuits 21 are divided into two groups；Wherein one group of control circuit, for showing
When resolution ratio reduces, under the control for the first control signal that corresponding control line 22 inputs, inputted to corresponding luminous signal line 12
First luminous signal, the corresponding each pixel unit 11 of control show that the working condition in the time is display state in a frame；Another group
Control circuit, when being reduced for display resolution, under the control for the second control signal that corresponding control line 22 inputs, to correspondence
Luminous signal line 12 inputs the second luminous signal, and the corresponding each pixel unit 11 of control shows that the working condition in the time is in a frame
Non-display state.Specifically, in order to avoid the complexity of attached drawing, two groups of control circuits are only given in Fig. 2 to Fig. 4 and Fig. 6
Mark；Wherein, Va1 and Va2 respectively indicates the grouping of the control circuit progress to line direction, and Vb1 and Vb2 are respectively indicated to column side
To control circuit be grouped.
Certainly, when being grouped to whole control circuits 21, each control circuit 21 can also be divided into one group, it is right
Ying Di is intended to one group of control line 22 of setting for each group of control circuit, i.e. how many group of control circuit 21, control line 22 just has more
Few group；However, although this kind of group technology can be adapted for the reduction multiple of any display resolution, but due to controlling one
Circuit 21 is divided into one group, and more control line 22 is unfavorable for significantly occupy the area of frame need to set in this way
The design of narrow frame；Therefore, the present invention proposes the embodiment of the present invention mainly by taking whole control circuits 21 are divided into two groups as an example
The above-mentioned electroluminescence display panel supplied is described in detail.
Specifically, in a side of display area 10, as shown in Figure 2 and Figure 4, i.e., singly two groups of generative circuits can be set
Side driving；However, when unilateral driving, will cause significantly pressure drop, and signal delay is more tight since signal wire is arranged longer
Weight；In order to solve this problem, can be as shown in Figure 5 and Figure 6, two groups of generative circuits are respectively arranged to the phase of display area 10
To two sides, the phenomenon that realizing bilateral driving, can not only reduce pressure drop, signal delay can also be effectively improved；Therefore, exist
In above-mentioned electroluminescence display panel provided in an embodiment of the present invention, two groups of generative circuits are respectively arranged at the phase of display area 10
To two sides (as shown in Figure 5 and Figure 6)；Or, two groups of generative circuits are all set in side (such as Fig. 2 for display area 10
With shown in Fig. 4).
Further, it when whole control circuits 21 are divided into two groups, can be reduced according to display resolution specific
Multiple is grouped control circuit 21；For example, by taking Fig. 4 and structure shown in fig. 5 as an example, in order to avoid the complexity of attached drawing,
The mark of two groups of control circuits is only given in Fig. 2 to Fig. 4 and Fig. 6, display resolution is reduced in line direction and column direction
It at twice, can be grouped according to odd even, i.e., the generative circuit 21a of odd-numbered line is divided into one group, as Va1, by even number
Capable generative circuit 21a is divided into one group, as Va2；Similarly, the multiplexer circuit 21b of odd column is divided into one group, i.e.,
For Vb1, the multiplexer circuit 21b of even column is divided into one group, as Vb2；And when display resolution is in line direction and column
When direction reduces three times, the generative circuit 21a of the first row and fourth line is divided into one group, as by structure as shown in FIG. 6
The generative circuit 21a of remaining rows is divided into one group, as Va2 by Va1；Similarly, multi-path choice electricity first row and the 4th arranged
Road 21b is divided into one group, as Vb1, the multiplexer circuit 21b of remaining columns is divided one group, as Vb2.Generally, it shows
The reduction multiple of resolution ratio is identical with the reduction multiple on column direction in line direction；It certainly, can also basis in addition to special requirement
Reduction multiple setting of the actual requirement on line direction and column direction be not identical, is not limited thereto.Therefore, it is retouched according to above-mentioned
It states, regardless of display resolution reduces how many times in line direction and column direction, in above-mentioned electroluminescent provided in an embodiment of the present invention
In display panel, two neighboring working condition is that a working condition is at least spaced between the pixel unit 11 of display state is non-
The pixel unit 11 of display state.
It should be pointed out that in display resolution when line direction and column direction reduce three times, point of control circuit 21
Group situation is as shown in Figure 6；However, under normal circumstances, in order to guarantee the working time balance of each pixel unit 11, needing every
The position for the pixel unit 11 that one action state is display state is just needed replacing every certain time；Therefore, if with shown in Fig. 6
Structure when being grouped to control circuit 21, it is difficult to guarantee alternately displaying for each pixel unit 11, so every in order to guarantee
The working time of a pixel unit 11 balances, and reduces the power consumption of system and guarantee the display effect of image, generally, adjacent
Two working conditions are the pixel unit that one working condition in interval is non-display state between the pixel unit 11 of display state
11。
Preferably, reducing display resolution, while reducing system power dissipation, in order to not influence the display effect of image,
Generally, the reduction multiple of display resolution is identical with the reduction multiple on column direction in line direction, and 2 times are reduced, because
This, in above-mentioned electroluminescence display panel provided in an embodiment of the present invention, as shown in Figure 4 and Figure 5, two neighboring working condition
One working condition in interval is the pixel unit 11 of non-display state between pixel unit 11 to show state；Driving is odd
Each generative circuit 21a of several rows of each pixel units 11 constitutes one group of generative circuit Va1；Drive each of each pixel unit 11 of even number line
Generative circuit 21a constitutes one group of generative circuit Va2.
Further, in order to reduce pressure drop and improve signal delay the phenomenon that, in above-mentioned electricity provided in an embodiment of the present invention
In photoluminescence display panel, as shown in figure 5, two groups of generative circuits are respectively arranged at opposite two sides of display area 10, i.e.,
One group of generative circuit of driving each pixel unit 11 of odd-numbered line is set to the left side of display area 10, drives each pixel list of even number line
One group of generative circuit of member 11 is set to the right side of display area 10；It is, of course, also possible to which each pixel unit 11 of even number line will be driven
One group of generative circuit be set to the left side of display area 10, one group of generative circuit of each pixel unit 11 of odd-numbered line will be driven to set
It is placed in the right side of display area 10, is not limited thereto.
Preferably, the grouping for multiplexer circuit 21b is arranged, in above-mentioned electroluminescent provided in an embodiment of the present invention
In display panel, as shown in Figure 4 and Figure 5, two neighboring working condition is that one is spaced between the pixel unit 11 of display state
When working condition is the pixel unit of non-display state, each multiplexer circuit 21b structure of each pixel unit 11 of odd column is driven
At one group of multiplexer circuit Vb1；Each multiplexer circuit 21b of each pixel unit 11 of even column is driven to constitute one group of multichannel choosing
Select circuit Vb2.
Further, since multiplexer circuit 21b is generally positioned at the output end of source electrode driver, and source electrode driver
It is generally positioned at a side of display area 10, therefore, in above-mentioned electroluminescence display panel provided in an embodiment of the present invention
In, as shown in Figure 4 and Figure 5, two groups of multiplexer circuits are all set in a side of display area 10.
In the specific implementation, in electroluminescence display panel, pixel unit 11 include pixel control circuit, and with picture
The luminescence unit of plain control circuit electrical connection, luminescence unit shines under the control of pixel control circuit, to realize display
Function；And in comparative example, regardless of whether display resolution reduces, the pixel control circuit in each pixel unit 11 is located
In working condition, i.e. thin film transistor (TFT) in pixel control circuit is work；Only, when high-resolution is shown, pixel control
Circuit control luminescence unit normal luminous processed, shows in low resolution, and pixel control circuit reduces the light emission luminance of luminescence unit
Or control luminescence unit does not shine；In this way, the pixel control circuit when low resolution is shown, in pixel unit 11 is made to be also
In running order, prevent the power consumption of system is from being effectively reduced；And provided in an embodiment of the present invention above-mentioned electroluminescent
In light emitting display panel, pixel unit 11 shows that the non-display state in the time is the picture being set in pixel unit 11 in a frame
Plain control circuit is in off working state, wherein can be whole thin film transistor (TFT)s and is in off working state, or is most of thin
Film transistor is in off working state, as long as can guarantee that pixel control circuit is in off working state, does not limit herein
It is fixed；Therefore, by the control of generative circuit 21a and multiplexer circuit 21b in control circuit 21, so that without showing image
Pixel unit 11 in pixel control circuit be in off working state, i.e. the not work of thin film transistor (TFT) in pixel control circuit
Make, correspondingly, corresponding luminescence unit would not also shine, so that corresponding pixel unit 11 does not show image, thus effectively
Ground reduces the power consumption of system, extends the service life of display device.
In the specific implementation, due to when display resolution reduces, at the pixel control circuit in partial pixel unit 11
In off working state, so that the working condition of the partial pixel unit 11 is non-display state, i.e., the partial pixel unit 11 is not
Show image, and rest of pixels unit 11 then shows image；Therefore, in order to which the working time for guaranteeing each pixel unit 11 is flat
Weighing apparatus can show time replacement one action state as the position of the pixel unit 11 of display state using a frame.
For example, for the structure shown in Fig. 7 a to Fig. 7 d, wherein show 16 pixel units 11, and odd-numbered line
Generative circuit 21a is one group, and the generative circuit 21a of even number line is one group, and similarly, the multiplexer circuit 21b of odd column is one
Group, the multiplexer circuit 21b of even column are one group；Also, for ease of description, label is distinguished for each pixel unit 11,
From left to right successively according to every row are as follows: 11-1,11-2,11-3,11-4,11-5,11-6,11-7,11-8,11-9,11-10,11-
11,11-12,11-13,11-14,11-15 and 11-16；Also, when the luminescence unit in pixel unit 11 is that vertical line is filled
The working condition for indicating the pixel unit 11 is display state；It is aobvious in first frame when display resolution is reduced to 2*2 by 4*4
Show in the time, as shown in Figure 7a, under the control of generative circuit 21a and multiplexer circuit 21b, working condition is display state
Pixel unit 11 be respectively 11-2,11-4,11-10 and 11-12；It is shown in the time in the second frame, as shown in Figure 7b, in order to protect
The working time for demonstrate,proving each pixel unit 11 is balanced, needs to adjust the pixel unit 11 that working condition is display state, i.e., herein
Frame show the time in, working condition be display state pixel unit 11 then are as follows: 11-6,11-8,11-14 and 11-16；In third
Frame was shown in the time, as shown in Figure 7 c, also needed the pixel unit 11 that adjustment working condition is display state, therefore, herein
Frame shows in the time that working condition is the pixel unit 11 of display state are as follows: 11-1,11-3,11-9 and 11-11；In the 4th frame
It shows in the time, as shown in figure 7d, also needs the pixel unit 11 that adjustment working condition is display state, i.e., shown in this frame
In time, working condition is the pixel unit 11 of display state are as follows: 11-5,11-7,11-13 and 11-15；Therefore, every display one
Frame image, it is necessary to the position for the pixel unit 11 that one action state is display state is adjusted, to be conducive to each pixel list
The working time of member 11 is balanced.
If however, as soon as every display frame image, adjustment one action state are the position of the pixel unit 11 of display state
It sets, then needing ceaselessly to adjust, prevent system power dissipation is from being further decreased during the display of image；Therefore,
, can be in switching on and shutting down in order to further decrease system power dissipation, or be display shape to working condition when display screen is waken up
The position of the pixel unit 11 of state is adjusted, and by reducing the adjustment number of display position, further decreases the power consumption of system.
In the specific implementation, in order to realizing the work for controlling corresponding pixel unit 11 by two groups of control circuits
State, in above-mentioned electroluminescence display panel provided in an embodiment of the present invention, first control signal is with second control signal
Control signal with different timing.
Specifically, in the conventional configuration as shown in figure 5, control circuit 21 include: LED control signal generative circuit 21a and
Multiplexer circuit 21b, control line 22 include: thread switching control 22b and clock cable 22a, and luminous signal line 12 includes: hair
Optical control signal line 12a and data signal line 12b；Wherein, since generative circuit 21a is divided into two groups, clock signal
Line 22a also has two groups, is electrically connected respectively with every group of generative circuit, and control letter occurs for controlling generative circuit 21a output and shining
Number, i.e., first group of clock cable 22a1 is electrically connected with the generative circuit 21a of odd-numbered line, second group of clock cable 22a2 and idol
Several rows of generative circuit 21a electrical connection, and every group of clock cable includes two, i.e. the first clock cable m1 and second
Clock cable m2, in order to avoid the complexity of attached drawing, being only presented in Fig. 5 every group of clock cable includes two clock letters
Number line, and in Fig. 2, Fig. 4 and Fig. 6, does not provide the specific structure of every group of clock cable, only with a clock cable come
Indicate one group of clock cable；Further, in the structure shown in Fig. 7 a, in the pixel unit that working condition is display state
11 are as follows: when 11-6,11-8,11-14 and 11-16, and the thin film transistor (TFT) in pixel unit 11 in pixel control circuit is N
When type, the normal periodic clock signal that first group of clock cable 22a1 is inputted to the generative circuit 21a of odd-numbered line, control
The generative circuit 21a of odd-numbered line processed is to corresponding LED control signal line 12a input high level signal, so that the pixel of odd-numbered line
The pixel control circuit of unit 11 is in running order；And second group of clock cable 22a2 is to the generative circuit 21a of even number line
Non- clock signal is inputted, such as low level signal (if the thin film transistor (TFT) for constituting generative circuit 21a is N-type), controls even number line
Generative circuit 21a to corresponding LED control signal line 12a input low level signal so that the pixel unit 11 of even number line
Pixel control circuit is in off working state；Therefore, in the identical situation of structure of each generative circuit 21a, first group of clock
Signal wire 22a1 and second group of clock cable 22a2 has the clock of different timing to corresponding generative circuit 21a input respectively
When signal, it can realize that two groups of generative circuits export different signals.
Similarly, as shown in figure 5, since multiplexer circuit 21b is divided into two groups, thread switching control 22b also has
It two groups, such as 22b1 and 22b2, is electrically connected respectively with every group of multiplexer circuit, for controlling multiplexer circuit 21b output number
It is believed that number；But multiplexer circuit 21b is generally positioned at the output end of source electrode driver, passes through the control of multiplexer circuit 21b
System, the data signal transmission that source electrode driver timesharing is exported are provided into corresponding data signal line 12b for pixel unit 11
Data-signal；The structure of specific multiplexer circuit 21b is as shown in figure 8, since a pixel unit 11 generally comprises three
Sub-pixel unit, each sub-pixel unit is provided with a data signal wire 12b, so each multiplexer circuit 21b can
To include three switching transistors (such as T1, T2 and T3)；Correspondingly, thread switching control 22b equally includes three (i.e. Fig. 5 and Fig. 8
Shown in n1, n2 and n3), and be electrically connected respectively with the grid of three switching transistors, i.e. the setting quantity of control line 22
It is identical as the setting quantity of sub-pixel unit that pixel unit 11 includes, with the on and off for control switch transistor；
Also, in order to avoid the complexity of attached drawing, being only presented in Fig. 5 every group of thread switching control includes three, and in Fig. 3, Fig. 4 and
In Fig. 6, the specific structure of every group of thread switching control is not provided, one group of thread switching control is only indicated with a line；In addition, three
A switching transistor can be with N-type, or p-type；By taking three switching transistors are N-type as an example, when needing multiplexer circuit
When 21b is to corresponding data signal line 12b input data signal, control line 22 is respectively to the grid input of three switching transistors
High level signal, so that three switching transistors are connected in turn；And believe when not needing multiplexer circuit 21b to corresponding data
When number line 12b input data signal, control line 22 is respectively to the grid input low level signal of three switching transistors, so that three
A switching transistor is all ended.
Also, in the structure shown in Fig. 7 a, in order to avoid the complexity of attached drawing, one group only is indicated with a clock cable
Clock cable only indicates one group of thread switching control with a thread switching control, and does not show that son in pixel unit 11
Pixel unit；Switching transistor conducting in the multiplexer circuit 21b of first group of control line traffic control odd column, by data-signal
Output is to corresponding data signal line 12b, so that the pixel control circuit of the pixel unit 11 of odd column is in running order；The
Switching transistor cut-off in the multiplexer circuit 21b of two groups of control line traffic control even columns, not to corresponding data signal line
12b input data signal, so that the pixel control circuit of the pixel unit 11 of even column is in off working state；Therefore, each
In the identical situation of the structure of multiplexer circuit 21b, first group of thread switching control 22b and second group of thread switching control 22b, point
When not there is the switch control signal of different timing to corresponding multiplexer circuit 21b input, two groups of multichannel choosings can be controlled
Select the different signal of circuit output.
Therefore, pass through the control of generative circuit 21a and multiplexer circuit 21b, it is ensured that without showing the picture of image
The pixel control circuit of plain unit 11 is in off working state, and needs to show the pixel control circuit of the pixel unit 11 of image
It is in running order, while realizing low resolution display, it further reduced the power consumption of system.
Based on the same inventive concept, the embodiment of the invention also provides a kind of as provided in an embodiment of the present invention above-mentioned electroluminescent
The driving method of light emitting display panel, as shown in figure 9, may include:
S901, the signal for receiving a frame image to be displayed；
S902, to control line input control signal corresponding with each group control circuit so that each group control circuit is to correspondence
Luminous signal line input luminous signal, the working condition of the corresponding each pixel unit of control；
S903, display treated image.
Above-mentioned driving method provided in an embodiment of the present invention, passes through setting for the driving method to electroluminescence display panel
It sets, so that different organize control circuit respectively by different control line traffic controls, so that different group control circuits can export not
Same luminous signal passes through the working condition that different luminous signals controls respective pixel unit；Therefore, low resolution is being needed
When display, without passing through the control of each group control circuit on the basis of changing the structure of various circuits in display panel
The control respectively to each pixel unit is realized, to help to realize without showing that the pixel unit of image is in non-display shape
State further decreases the power consumption of system.
In the specific implementation, the step S902 in above-mentioned driving method provided in an embodiment of the present invention is controlled to each group
The corresponding control line input control signal of circuit, so that each group control circuit inputs luminous signal to corresponding luminous signal line,
Before the working condition of the corresponding each pixel unit of control, can also include:
Determine whether the display resolution of the image to be displayed received needs to reduce；
When the display resolution for determining image to be displayed needs to reduce, the display resolution of image to be displayed is reduced.
Specifically, in above-mentioned driving method provided in an embodiment of the present invention, the aobvious of the image to be displayed received is determined
Show whether resolution ratio needs to reduce, can specifically include:
Determine the image to be displayed that receives whether be can the image that shows of low resolution；
Determine the image to be displayed that receives be can low resolution show image when, figure to be shown that determination receives
The display resolution of picture needs to reduce；
Determine the image to be displayed that receives be not can low resolution show image when, determination receives to be shown
The display resolution of image needs to keep.
Specifically, can the image that shows of low resolution, generally comprise character image, image when not enough power supply, standby shape
Image of state, or image when being waken up etc., are not limited thereto.
Specifically, in order to guarantee each pixel unit working time equilibrium, present frame low resolution show image
When, it, can be with after the display resolution for reducing image to be displayed in above-mentioned driving method provided in an embodiment of the present invention
Include:
According to the working condition of each pixel unit in the display image of previous frame and preset each pixel unit work shape
The switching law of state determines that each pixel unit needs the working condition met in present frame image to be displayed.
Further, in above-mentioned driving method provided in an embodiment of the present invention, the switching of each pixel unit working condition
Rule is that previous frame is in the working condition of the pixel of display state, is switched to non-display state from display state in present frame,
The pixel of display state is in line direction or in the working condition of the adjacent pixel of column direction with previous frame, in present frame from non-
Display state is switched to display state.
Specifically, as shown in Figure 7 a to 7 d, it is shown in the time in previous frame, if being in the pixel unit 11 of display state
For 11-6,11-8,11-14 and 11-16 (as shown in Figure 7a), then the time is shown in present frame, pixel unit 11-6,11-8,
The working condition of 11-14 and 11-16 is switched to non-display state；And exist with pixel unit 11-6,11-8,11-14 and 11-16
Line direction or the pixel unit 11 adjacent in column direction show in the time in present frame, switch to display shape from non-display state
State, as shown in Fig. 7 b to Fig. 7 c.
It in the specific implementation, is the control that shines in luminous signal line in above-mentioned driving method provided in an embodiment of the present invention
When signal wire processed, control circuit is the generative circuit of LED control signal, and control line is clock cable, controls electricity to each group
The corresponding control line input control signal in road, so that each group control circuit inputs luminous signal, control to corresponding luminous signal line
The working condition of the corresponding each pixel unit of system, can specifically include:
To clock cable input clock signal corresponding with each group generative circuit, so that each group generative circuit is to corresponding
LED control signal line inputs LED control signal, and the working condition of control section pixel unit is non-display state.
It in the specific implementation, is data letter in luminous signal line in above-mentioned driving method provided in an embodiment of the present invention
When number line, control circuit is multiplexer circuit, and control line is thread switching control；To control line corresponding with each group control circuit
Input control signal, so that each group control circuit inputs luminous signal, the corresponding each pixel list of control to corresponding luminous signal line
The working condition of member, can specifically include:
Signal is controlled to thread switching control input switch corresponding with each group multiplexer circuit, so that each group multi-path choice
For circuit to corresponding data signal line input data signal, the working condition of control section pixel unit is non-display state.
Just the above-mentioned driving method that embodiment provides is described in detail with specific embodiment below.
Specifically, by taking Fig. 4 and structure shown in fig. 5 as an example, specific flow chart is as shown in Figure 10.
S1001, the signal for receiving a frame image to be displayed；
S1002, determine the image to be displayed that receives whether be can the image that shows of low resolution；If so, executing step
Rapid S1003；If it is not, thening follow the steps S1004；
S1003, determine that the display resolution of the image to be displayed received needs to reduce；Execute step S1005；
S1004, determine that the display resolution of the image to be displayed received needs to keep；Execute step S1009；
S1005, the display resolution for reducing image to be displayed；
S1006, the working condition of each pixel unit and preset each pixel unit in image are shown according to previous frame
The switching law of working condition determines that each pixel unit needs the working condition met in present frame image to be displayed；
S1007, to clock cable input clock signal corresponding with each group generative circuit so that each group generative circuit to
Corresponding LED control signal line inputs LED control signal, and the working condition of control section pixel unit is non-display state；
S1008, signal is controlled to thread switching control input switch corresponding with each group multiplexer circuit, so that each group is more
For road selection circuit to corresponding data signal line input data signal, the working condition of control section pixel unit is non-display shape
State；
S1009, display treated image.
It based on the same inventive concept, may include: as of the invention real the embodiment of the invention also provides a kind of display device
The above-mentioned electroluminescence display panel of example offer is provided.The display device can be with are as follows: mobile phone (as shown in figure 11), tablet computer, electricity
Depending on any products or components having a display function such as machine, display, laptop, Digital Frame, navigator.It is aobvious for this
Other essential component parts of showing device are not done herein it will be apparent to an ordinarily skilled person in the art that have
It repeats, also should not be taken as limiting the invention.
The embodiment of the invention provides a kind of electroluminescence display panel, its driving method and display devices, comprising: display
Region and neighboring area；The multiple pixel units being arranged in array are provided in display area；Neighboring area be provided with respectively
The control circuit of pixel unit being expert at and/or be correspondingly arranged with the column of each pixel unit；Wherein, display area also
It is provided with the luminous signal line connecting with each control circuit；Whole control circuits are divided at least two groups；In neighboring area
It is additionally provided with the control line being correspondingly arranged with each group control circuit；Each control line mutually insulated setting；Each group control circuit, is used for
Under the control of the control signal of corresponding control line input, luminous signal, the corresponding each picture of control are inputted to corresponding luminous signal line
The working condition of plain unit；Therefore, it is arranged by the grouping to control circuit, so that different group control circuits are respectively by different
Line traffic control is controlled, so that different group control circuits can export different luminous signals, passes through different luminous signal controls
The working condition of respective pixel unit processed；Therefore, when needing low resolution to show, without changing various electricity in display panel
On the basis of the structure on road, by the control of each group control circuit, the control respectively to each pixel unit can be realized, to have
Help realize without showing that the pixel unit of image is in non-display state, while realizing low resolution display, be effectively reduced
The power consumption of system.
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 (21)
1. a kind of electroluminescence display panel, comprising: display area and neighboring area；It is provided in the display area in array
Multiple pixel units of arrangement；The neighboring area be provided with each pixel unit be expert at and/or column pair
The control circuit for the luminous signal that should be arranged；Wherein,
The luminous signal line connecting with each control circuit is additionally provided in the display area；
All the control circuit is divided at least two groups；
The control line being correspondingly arranged with control circuit described in each group is additionally provided in the neighboring area；Each control line phase
Mutual insulation set；
Control circuit described in each group, under the control of the control signal of correspondence control line input, to the correspondence hair
Optical signal line inputs luminous signal, the working condition of the corresponding each pixel unit of control；
Control circuit described in each group is specifically used for when normal display resolution shows picture, in the correspondence control line input
Control signal control under, input luminous signal to the correspondence luminous signal line, the corresponding each pixel unit of control
Working condition is display state；When display resolution reduces, under the control of the control signal of the correspondence control line input,
Luminous signal is inputted to the correspondence luminous signal line, pixel unit described in control section shows the work shape in the time in a frame
State is non-display state.
2. electroluminescence display panel as described in claim 1, which is characterized in that all the control circuit is divided into two
Group；
Wherein one group of control circuit, when being reduced for display resolution, in the first control signal of the correspondence control line input
Control under, input the first luminous signal to the correspondence luminous signal line, the corresponding each pixel unit of control is aobvious in a frame
Show that the working condition in the time is display state；
Another group of control circuit, when being reduced for the display resolution, in the second control letter of the correspondence control line input
Number control under, input the second luminous signal to the correspondence luminous signal line, the corresponding each pixel unit of control is in a frame
Show that the working condition in the time is non-display state.
3. electroluminescence display panel as claimed in claim 2, which is characterized in that two neighboring working condition is display state
The pixel unit between be at least spaced a working condition be non-display state the pixel unit.
4. electroluminescence display panel as claimed in claim 3, which is characterized in that the pixel unit shows the time in a frame
Interior non-display state is that the pixel control circuit being set in the pixel unit is in off working state.
5. electroluminescence display panel as claimed in claim 2, which is characterized in that control circuit described in two groups is respectively arranged at
Opposite two sides of the display area；Or,
Control circuit described in two groups is all set in a side of the display area.
6. electroluminescence display panel as claimed in claim 2, which is characterized in that the first control signal and described second
Control signal is the control signal with different timing.
7. electroluminescence display panel as claimed in any one of claims 1 to 6, which is characterized in that the control circuit includes:
The generative circuit and/or multiplexer circuit of LED control signal；
The generative circuit of the LED control signal is correspondingly arranged with each being expert at for the pixel unit；
The column of the multiplexer circuit and each pixel unit is correspondingly arranged.
8. electroluminescence display panel as claimed in claim 7, which is characterized in that the control circuit includes: light emitting control
The generative circuit of signal；
The luminous signal line is LED control signal line；
The control line is clock cable.
9. electroluminescence display panel as claimed in claim 7, which is characterized in that the control circuit includes: multi-path choice
Circuit；
The luminous signal line is data signal line；
The control line is thread switching control.
10. electroluminescence display panel as claimed in claim 7, which is characterized in that the control circuit includes: light emitting control
The generative circuit and multiplexer circuit of signal；
The luminous signal line includes: LED control signal line and data signal line；
The control line includes: clock cable and thread switching control.
11. the electroluminescence display panel as described in claim 8 or 10, which is characterized in that two neighboring working condition is aobvious
Show the pixel unit for being spaced that a working condition is non-display state between the pixel unit of state；
Each generative circuit of each pixel unit of odd-numbered line is driven to constitute one group of generative circuit；
Each generative circuit of each pixel unit of even number line is driven to constitute one group of generative circuit.
12. electroluminescence display panel as claimed in claim 11, which is characterized in that generative circuit described in two groups is respectively set
In opposite two sides of the display area.
13. the electroluminescence display panel as described in claim 9 or 10, which is characterized in that two neighboring working condition is aobvious
Show the pixel unit for being spaced that a working condition is non-display state between the pixel unit of state；
Each multiplexer circuit of each pixel unit of odd column is driven to constitute one group of multiplexer circuit；
Each multiplexer circuit of each pixel unit of even column is driven to constitute one group of multiplexer circuit.
14. electroluminescence display panel as claimed in claim 13, which is characterized in that multiplexer circuit described in two groups is all provided with
It is placed in a side of the display area.
15. a kind of display device characterized by comprising such as the described in any item electroluminance display faces claim 1-14
Plate.
16. a kind of driving method of such as described in any item electroluminescence display panels of claim 1-14, which is characterized in that packet
It includes:
Receive the signal of a frame image to be displayed；
To control line input control signal corresponding with each group control circuit, so that each group control circuit shines to corresponding
Signal wire inputs luminous signal, the working condition of the corresponding each pixel unit of control；
Display treated image；
Wherein, to control line input control signal corresponding with each group control circuit, so that each group control circuit is to right
The luminous signal line input luminous signal answered, control correspond to before the working condition of each pixel unit, further includes:
Determine whether the display resolution of the image to be displayed received needs to reduce；
When determining that the display resolution of the image to be displayed needs to reduce, the display for reducing the image to be displayed is differentiated
Rate.
17. driving method as claimed in claim 16, which is characterized in that the image to be displayed that the determination receives
Whether display resolution, which needs, reduces, and specifically includes:
Determine the image to be displayed that receives whether be can the image that shows of low resolution；
Determine the image to be displayed that receives be can low resolution show image when, determine receive it is described to aobvious
The display resolution of diagram picture needs to reduce；
Determine the image to be displayed that receives be not can low resolution show image when, determination receive it is described to
The display resolution of display image needs to keep.
18. driving method as claimed in claim 16, which is characterized in that in the display resolution for reducing the image to be displayed
Later, further includes:
According to the working condition and preset each pixel unit working condition of each pixel unit in the display image of previous frame
Switching law determines the working condition that each pixel unit needs to meet in image to be displayed described in present frame.
19. driving method as claimed in claim 18, which is characterized in that the switching law of each pixel unit working condition
For, previous frame is in the working condition of the pixel of display state, it is switched to non-display state from the display state in present frame,
The pixel of display state is in line direction or in the working condition of the adjacent pixel of column direction with previous frame, is worked as described
Previous frame is switched to the display state from the non-display state.
20. such as the described in any item driving methods of claim 16-19, which is characterized in that in the luminous signal line be luminous
When control signal wire, the control circuit is the generative circuit of LED control signal, and the control line is clock cable, described
To control line input control signal corresponding with each group control circuit, so that each group control circuit is to corresponding luminous signal
Line inputs luminous signal, and the working condition of the corresponding each pixel unit of control specifically includes:
To clock cable input clock signal corresponding with each group generative circuit, so that each group generative circuit is to corresponding
LED control signal line inputs LED control signal, and the working condition of pixel unit described in control section is non-display state.
21. such as the described in any item driving methods of claim 16-19, which is characterized in that in the luminous signal line be data
When signal wire, the control circuit is multiplexer circuit, and the control line is thread switching control；It is described to control electricity to each group
The corresponding control line input control signal in road, so that each group control circuit inputs the letter that shines to corresponding luminous signal line
Number, the working condition of the corresponding each pixel unit of control specifically includes:
Signal is controlled to thread switching control input switch corresponding with each group multiplexer circuit, so that each group multi-path choice
For circuit to corresponding data signal line input data signal, the working condition of pixel unit described in control section is non-display shape
State.
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| CN108877623B (en) * | 2018-07-02 | 2021-07-09 | 上海中航光电子有限公司 | Array substrate, electrophoresis display panel, driving method of electrophoresis display panel and display device |
| CN109559673A (en) * | 2019-01-18 | 2019-04-02 | 京东方科技集团股份有限公司 | A kind of driving method and display device of display panel |
| CN112289203B (en) | 2020-10-29 | 2022-09-02 | 合肥维信诺科技有限公司 | Display panel and display device |
| CN115016176A (en) * | 2022-06-24 | 2022-09-06 | 上海耕岩智能科技有限公司 | Display module, control method and electronic equipment |
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Effective date of registration: 20220311 Address after: No.8 liufangyuan Road, Dongyi Industrial Park, Donghu New Technology Development Zone, Wuhan, Hubei Province Patentee after: WUHAN TIANMA MICRO-ELECTRONICS Co.,Ltd. Patentee after: Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch Address before: Room 509, building 1, 6111 Longdong Avenue, Pudong New Area, Shanghai 201201 Patentee before: SHANGHAI TIANMA AM-OLED Co.,Ltd. |