CN102622988B - Drive circuit, display screen and electronic equipment - Google Patents
Drive circuit, display screen and electronic equipment Download PDFInfo
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- CN102622988B CN102622988B CN201210111944.7A CN201210111944A CN102622988B CN 102622988 B CN102622988 B CN 102622988B CN 201210111944 A CN201210111944 A CN 201210111944A CN 102622988 B CN102622988 B CN 102622988B
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Abstract
The invention discloses a drive circuit, a display screen and electronic equipment. The drive circuit comprises M gate drivers and N source drivers, wherein the M gate drivers are connected with the display screen; each of the M gate drivers comprises a first control pin, a second control pin, a third control pin and a fourth control pin; the first control pins are used for receiving positive scanning control signals, and the second control pins are used for receiving reverse scanning control signals; the third control pins are connected with the fourth control pins; the fourth control pin of the ith gate driver is connected with the third control pin of the (i+1)th gate driver; the fourth control pin of the Mth gate driver is connected with the second control pin of the Mth gate driver, M is an integer which is more than or equal to 2, and i is an integer which is more than or equal to 1 and less than M; and the N source drivers are connected with the display screen, and N is an integer which is more than or equal to 1.
Description
Technical field
The present invention relates to electronic technology field, particularly a kind of driving circuit, display screen and electronic equipment.
Background technology
TFT(Thin Film Transistor, Thin Film Transistor (TFT)) liquid crystal panel is when carrying out image transmitting, by fixed railing driver scan mode and source electrode driver transmission mode, realize, as shown in Figure 1, in Fig. 1, describe for the panel of 60HZ1366*768, the forward scan mode of this panel is for from top to bottom, from left to right, thereby the direction of scanning of corresponding gate drivers is G1 → G768, i.e. scanning from top to bottom, the transmission direction of corresponding source electrode driver shift register is S1 → S1366, i.e. from left to right scanning.
Visible, the direction of scanning of above-mentioned panel is more single, and for complete machine structure, design has also proposed fixing structural design to the unicity of this display direction, can not reach the demand of bilateral scanning.
And in the prior art, in order to solve the problems of the technologies described above, the way of prior art is to realize reverse scan by additionally adding a lot of shift registers in liquid crystal panel inside.Specifically, be: when faceplate inverted, just need to carry out reverse scan, now, in data storage, utilize the shift register additionally adding to carry out stored inverted, that is: image, when carrying out data storage, arrives last pixel data (1 of last column according to first pixel data of the first row (768,1366), 1) storage order is stored, and then realizes that faceplate inverted is placed and effect that image forward is watched.
And the inventor is in realizing process of the present invention, find above-mentioned problems of the prior art:
In prior art, by adding a lot of shift registers in liquid crystal panel inside, carry out gated sweep direction, carry out reverse scan, cause the system architecture of liquid crystal panel inside complicated.
Further, add a lot of shift registers carry out gated sweep direction in liquid crystal panel inside, cost is quite high.
Summary of the invention
The invention provides a kind of driving circuit, display screen and electronic equipment, in order to solve the complicated technical matters of system architecture when carrying out reverse scan existing in prior art.
On the one hand, the present invention, by the application's a embodiment, provides following technical scheme:
, comprising:
M gate drivers, is connected with a display screen, and wherein, in a described M gate drivers, each gate drivers comprises the first control pin, and second controls pin, and the 3rd controls pin, and the 4th controls pin; Wherein, described first controls pin is used for receiving forward scan control signal, and described second controls pin is used for receiving reverse scan control signal; Described the 3rd control pin and the described the 4th is controlled pin and is connected; The 3rd control pin that the 4th of i gate drivers controlled pin and i+1 gate drivers is connected, the second control pin that the 4th of M gate drivers controlled pin and described M gate drivers is connected, described M is more than or equal to 2 integer, and described i is more than or equal to 1 and be less than the integer of M; In a described M gate drivers, each gate drivers also comprises: bypass circuit, is connected with each gate drivers in a described M gate drivers; Wherein, when the 3rd of the 1st gate drivers controlled pin and received the reverse scan control signal corresponding with i gate drivers, by M bypass circuit in a described M gate drivers, make second of i gate drivers control pin and receive described reverse scan control signal, so that open successively each source electrode driver a described N source electrode driver from N to 1, and the described display screen capable video data transmitting of M-i+1 being arrived by a described N source electrode driver, for described display screen, show; N source electrode driver, is connected with described display screen, and wherein N is more than or equal to 1 integer; Wherein, when the first control pin of described i gate drivers receives described forward scan control signal, from 1 to N, open successively each source electrode driver a described N source electrode driver, and by a described N source electrode driver, the capable video data transmitting of i is arrived to described display screen, for described display screen, show; Wherein, when the second control pin of described i gate drivers receives reverse scan control signal, from N to 1, open successively each source electrode driver a described N source electrode driver, and the described display screen capable video data transmitting of M-i+1 being arrived by a described N source electrode driver, for described display screen, show.
Further, in a described N source electrode driver, each source electrode driver also comprises: level is controlled pin, by described level, control pin and the level of described each source electrode driver can be set as to high level or low level, latch described video data, when the first control pin of described i gate drivers receives described forward scan control signal, by a described N source electrode driver, the capable video data transmitting of i is arrived to described display screen, for described display screen, show; Or when the second control pin of described i gate drivers receives reverse scan control signal, the described display screen capable video data transmitting of M-i+1 being arrived by a described N source electrode driver, shows for described display screen.
On the other hand, the present invention provides a kind of display screen by another embodiment of the application, comprising:
Display unit; Driving circuit, is connected with described display unit, and wherein, described driving circuit comprises M gate drivers and N source electrode driver, and M is more than or equal to 2 integer, and N is more than or equal to 1 integer; Time schedule controller, is connected with a described M gate drivers, for generating forward scan control signal or the reverse scan control signal of controlling a described M gate drivers; Wherein, under the control of described forward scan control signal, by described driving circuit, the capable video data of i can be presented at i on described display unit capable on; Under the control of described reverse scan control signal, by described driving circuit, the capable video data of i can be presented at the M-i+1 of described display unit capable on.
Further, described time schedule controller comprises: forward scan control signal pin, and control pin with first of the 1st gate drivers in a described M gate drivers and be connected; Reverse scan control signal pin, controls pin with the 3rd of the 1st gate drivers in a described M gate drivers and is connected.
Further, described time schedule controller also comprises: the first resistance, is connected to first of described forward scan control signal pin and described the 1st gate drivers and controls between pin; The second resistance, is connected to the 3rd of described reverse scan control signal pin and described the 1st gate drivers and controls between pin.
Further, described display screen also comprises: N data register, corresponding one by one with a described N source electrode driver, wherein, in a described N source electrode driver, j source electrode driver is connected with j data register in a described N data register, wherein, j is more than or equal to 1 integer that is less than or equal to N.
On the one hand, the present invention provides a kind of electronic equipment by another embodiment of the application, comprising again:
One video data processing unit; Display screen, is connected with described video data processing unit, and wherein, it is capable that described display screen has M, and M is more than or equal to 2 integer; Wherein, when described display screen forward is placed, the capable video data of i from described video data processing unit can be presented at the i of described display screen capable on; Described display screen when being inverted, the capable video data of i from described video data processing unit can be presented at the M-i+1 of described display screen capable on.
One or more technical schemes in technique scheme, have following technique effect or advantage:
First, by add to control pin at gate drivers, and bypass circuit makes the technical scheme in the application can realize reverse scan, and do not need to use a large amount of extra shift registers.
Secondly, gate drivers, by accepting the forward scan control signal of time schedule controller, is controlled pin from the first control pin and second display screen is carried out to forward scan; And by accepting the reverse scan control signal of time schedule controller, from the 3rd, control this signal to the second control pin of pin bypass, since the second control pin, display screen is carried out to reverse scan, to realize the bilateral scanning of display screen, the cabling that only need to change gate drivers just can be realized the bilateral scanning of display screen, cost is low, good stability.
Again, when gate drivers carries out reverse scan, by the change of low and high level on source class driver, and coordinate data register to realize the reverse transfer of data, can reach when to display screen reverse scan, realize the technique effect that forward is watched.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of display screen in prior art;
Fig. 2 is the schematic diagram of driving circuit in the embodiment of the present application one;
Fig. 3 is the pinouts of gate drivers in the embodiment of the present application one;
Fig. 4 A is the connection layout of two gate drivers in the embodiment of the present application one;
Fig. 4 B is oscillogram during gate drivers forward scan in the embodiment of the present application one;
Fig. 4 C is oscillogram during two gate drivers reverse scans in the embodiment of the present application one;
Fig. 5 is the annexation figure of two source class drivers in the embodiment of the present application one;
Fig. 6 is the schematic diagram of display screen in the embodiment of the present application two;
Fig. 7 is the concrete structural drawing of time schedule controller in the embodiment of the present application two;
Fig. 8 is the schematic diagram while scanning character image in display screen in the embodiment of the present application;
Fig. 9 is electronic equipment schematic diagram in the embodiment of the present application three.
Embodiment
The complicated technical matters of system architecture when carrying out reverse scan existing in order to solve prior art, the embodiment of the present invention has proposed a kind of driving circuit, display screen and electronic equipment, realize principle, specific implementation process below in conjunction with Figure of description to the embodiment of the present invention main and the beneficial effect that should be able to reach be explained in detail.
Substantially the principle that realizes of the present invention is by new control pin on the gate drivers in display screen, realize the bilateral scanning of display screen, again, in order to coordinate the change of gate drivers, on source class driver and miscellaneous part, also carried out some and changed, and most critical part is: the circuit design of carrying out reverse scan design and the design of source electrode driver reverse transfer in the design of gate drivers.In the embodiment of the present application, display screen being carried out to bilateral scanning comprises: forward scan and reverse scan, and for gate drivers and source class driver, when display screen is carried out to forward scan, gate drivers is to scan from top to bottom, and source class driver is from left to right to scan.When display screen is carried out to reverse scan, gate drivers is to scan from the bottom up, and source class driver is to scan from right to left.
And gate drivers and source class driver are how display screen to be carried out to bilateral scanning, specifically see the following example.
Embodiment mono-:
In the present embodiment, described a kind of driving circuit 602, as shown in Figure 2, having comprised: M gate drivers 201 and N source electrode driver 202.
Wherein: M gate drivers 201 is connected with display screen 902, and in M gate drivers 201, each gate drivers comprises the first control pin, second controls pin, and the 3rd controls pin, and the 4th controls pin.
Further, first controls pin is used for receiving forward scan control signal, and second controls pin is used for receiving reverse scan control signal.
Further, the 3rd control pin and the 4th control pin are connected.
As shown in Figure 3, what Fig. 3 described is the pinouts of a gate drivers, gate drivers in background technology only has the first control pin and second to control pin, and gate drivers in Fig. 3 is on the basis of original gate drivers, newly increase two and controlled pin, the 3rd control pin and the 4th control pin, and the 3rd control pin and the 4th control pin are connected.
Further, annexation mutual between gate drivers is described below, such as, in M gate drivers 201, transfer arbitrarily i gate drivers and i+1 gate drivers.
The 3rd control pin that the 4th of i gate drivers controlled pin and i+1 gate drivers is connected, the second control pin that the 4th of M gate drivers 201 controlled pin and M gate drivers 201 is connected, and the 4th of last gate drivers the control pin and the second control pin of itself are connected.
Now, M is more than or equal to 2 integer, and i is more than or equal to 1 and be less than the integer of M.
In the present embodiment, display screen 902 is carried out to bilateral scanning to be based on and to realize on the basis of at least two gate drivers, as shown in Figure 4 A, two the simplest connections of gate drivers have been described, it is the situation of above-mentioned M=2 and i=1, the 4th of the 1st gate drivers the 3rd control pin and the 1st gate drivers controlled pin and is connected, and the 4th the 3rd control pin of controlling pin and the 2nd gate drivers of the 1st gate drivers is connected, the second control pin that the 4th of the 2nd gate drivers controlled pin and the 2nd gate drivers is connected.
Gone out outside above-mentioned situation, in actual applications, also there is the situation that gate drivers scans of using, when using a gate drivers to scan, the 3rd of this gate drivers the control pin and the 4th control pin of itself are connected, and the 4th control pin of itself and the second control pin of itself are connected, form a bars circuit.
In Fig. 4 A, when display screen 902 is carried out to bilateral scanning, each is controlled pin and specifically how to transmit scan control signal, as follows:
During forward scan:
In the 1st gate drivers first controlled pin and received forward scan control signal, then be transferred to successively second in the 1st gate drivers and control pin, in the 2nd gate drivers first controlled pin, and second in the 2nd gate drivers controlled pin, realizes forward scan.
As shown in Figure 4 B, during for forward scan, the oscillogram of gate drivers, wherein, first the 1st gate drivers can receive forward scan control signal, then passing to the 2nd gate drivers, the 2nd gate drivers also can receive forward scan control signal, and presents corresponding waveform.
During reverse scan:
When reverse scan, can apply to bypass circuit, wherein, bypass circuit, is connected with each gate drivers in a described M gate drivers; The mode of scanning direction is by the 3rd of the 1st gate drivers, to control pin to accept reverse scan control signal, by the 4th of the 1st gate drivers of bypass circuit bypass, control pin, the 3rd of the 2nd gate drivers controlled pin, the 4th of the 2nd gate drivers controlled pin, be transferred to second of the 2nd gate drivers always and control pin, then since second of the 2nd gate drivers, control pin and carry out reverse scan, until the first control pin of the 1st gate drivers, reverse scan finishes.
As shown in Figure 4 C, during for reverse scan, the oscillogram of gate drivers, wherein, first the 2nd gate drivers can receive reverse scan control signal, then passing to the 1st gate drivers, the 1st gate drivers also can receive reverse scan control signal, and presents corresponding waveform.
And while sending reverse scan control signal, the corresponding reverse scan control signal of each gate drivers, and the effect of bypass circuit is exactly when the 3rd of the 1st gate drivers controlled pin and received the reverse scan control signal corresponding with the 2nd gate drivers, by 2 bypass circuits in 2 gate drivers, make second of the 2nd gate drivers control pin and receive corresponding reverse scan control signal.
And, it should be noted that all reverse scan control signals are all since the 3rd of the 1st gate drivers, to control pin to transmit.
Above-mentioned two situations are that the present embodiment is for the bilateral scanning mode of gate drivers, carried out the most simply describing, and in actual conditions, can use more gate drivers, concrete annexation is the same with above-mentioned annexation, and the application repeats no more.
Below, introduce when gate drivers carries out bilateral scanning, source class driver how transmitting video data to display:
For convenience of description, the present embodiment is used two source class drivers to describe.
First, source class driver is connected with display screen 902.
When gate drivers forward scan, source class driver is also carrying out forward scan, and the forward scan of source class driver is carried out for each gate drivers.
When first of above-mentioned the 1st gate drivers, control pin and receive forward scan control signal, complete after the forward scan of the 1st row of display screen 902, source class driver can from 1 to 2 can be opened the 1st source electrode driver and the 2nd source electrode driver successively, and by two source electrode drivers by the video data transmitting of the 1st row to display screen 902, for display screen 902, show, and control pin when first of the 2nd gate drivers, receive forward scan control signal, complete after the forward scan of the 2nd row of display screen 902, source class driver also can from 1 to 2 can be opened the 1st source electrode driver and the 2nd source electrode driver successively, and by two source electrode drivers by the video data transmitting of the 2nd row to display screen 902.
Wherein, during reverse scan, also relevant with bypass circuit, bypass circuit makes second of above-mentioned the 2nd gate drivers control pin and receives reverse scan control signal, so that source class driver from 2 to 1 is opened each source electrode driver two source electrode drivers successively, and the display screen 902 video data transmitting of the 2nd row being arrived by two source electrode drivers, for display screen 902, show.
Further, at second of the 2nd gate drivers, control pin and receive reverse scan control signal, complete after the reverse scan of the 2nd row of display screen 902, source class driver can from 2 to 1 be opened each source electrode driver two source electrode drivers successively, and the display screen 902 video data transmitting of the 2nd row being arrived by two source electrode drivers, for display screen 902, show.
At second of the 1st gate drivers, control pin and receive reverse scan control signal, after the reverse scan of the 1st row of display screen 902, source electrode driver also can from 2 to 1 be opened each source electrode driver two source electrode drivers successively, and the display screen 902 video data transmitting of the 1st row being arrived by two source electrode drivers, for display screen 902, show.
The annexation of above-mentioned two source class drivers as shown in Figure 5, in Fig. 5, each source class driver comprises both direction control pin, wherein first direction control pin of the second direction of the 1st source class driver control pin and the 2nd source class driver is connected, when display screen 902 is carried out to forward scan, since the first direction of the 1st source class driver, control pin, second direction by the 1st source class driver is controlled pin, at the first direction that is transferred to the 2nd source class driver, control pin, successively display is carried out to forward scan, and after each gate drivers carries out forward scan, corresponding video data is imported in display screen 902.
When display is carried out to reverse scan, since the second direction of the 2nd source class driver, control pin, first direction by the 2nd source class driver is controlled pin, in the second direction that is transferred to the 1st source class driver, control pin, successively display is carried out to reverse scan, and after each gate drivers carries out reverse scan, and corresponding video data is imported in display screen 902.
And further, in source electrode driver, each source electrode driver also comprises level control pin, by level, control pin and the level of each source electrode driver can be set as to high level or low level, and for realizing the transmitted in both directions of video data.
It is the newly-increased pin of source electrode driver that level is herein controlled pin, for control source electrode driver data latch direction, with this, realize the transmitted in both directions of video data, such as having realized forward scan when gate drivers, this level is controlled the reverse video data that pin latchs source electrode driver, control source electrode driver forward transmitting video data, and work as gate drivers, realized reverse scan, this level is controlled the video data that pin latchs the forward of source electrode driver, controls source electrode driver reverse transfer video data.
And when source electrode driver carries out reverse scan, the image of scanning and the image of forward scan are inversion state, therefore, in order to realize when the reverse scan, user can be positive watch image, by controlling pin to level, set low and high level, to second of last source electrode driver, control pin and add initial high level signal, now source electrode driver latchs direction for oppositely latching, coordinate data register, change the mode of data storage and transmission, thereby realized the effect of the forward demonstration of image.
The above-mentioned transmission mode of having described respectively gate drivers and source class driver, the description gate drivers of lower mask body and source electrode driver are how to join together display screen 902 to carry out bilateral scanning.
Embodiment bis-:
In embodiment bis-, a kind of display screen 902 has been described, as shown in Figure 6, comprise display unit 601, the driving circuit 602 of describing in embodiment mono-, a time schedule controller 603 and N data register 604.
Wherein, driving circuit 602 is connected with display unit 601, and driving circuit 602 comprises M gate drivers 201 and N source electrode driver 202, and M is more than or equal to 2 integer, and N is more than or equal to 1 integer.
Further, time schedule controller 603 comprises: forward scan control signal pin and reverse scan control signal pin.
Further, forward scan control signal pin is controlled pin with first of the 1st gate drivers in M gate drivers 201 and is connected.Reverse scan control signal pin, controls pin with the 3rd of the 1st gate drivers in M gate drivers 201 and is connected.
Further, time schedule controller 603 also comprises the first resistance 6031 and the second resistance 6032.
Further, the first resistance 6031, is connected to first of forward scan control signal pin and the 1st gate drivers and controls between pin.The second resistance 6032, is connected to the 3rd of reverse scan control signal pin and the 1st gate drivers and controls between pin.
The concrete structure of above-mentioned time schedule controller 603 as shown in Figure 7, wherein, the forward scan control signal pin of time schedule controller 603 is connected with the first resistance 6031, and be connected by the first control pin of the first resistance 6031 and the 1st gate drivers, and reverse scan control signal pin is connected with the second resistance 6032, and by the second resistance 6032, controls pin with the 3rd of the 1st gate drivers in M gate drivers 201 and be connected.
N data register 604, corresponding one by one with N source electrode driver 202, wherein, in N source electrode driver 202, j source electrode driver is connected with j data register in N data register 604, and wherein, j is more than or equal to 1 integer that is less than or equal to N.
Wherein, under the control of forward scan control signal, by driving circuit 602, the capable video data of i can be presented at i on display unit 601 capable on; Under the control of reverse scan control signal, by driving circuit 602, the capable video data of i can be presented at the M-i+1 of display unit 601 capable on.
With concrete example, describe below.
Suppose to have the display screen 902 of a 5*4, shown personage's picture, this personage sheet is that forward is placed in display screen 902, this display has 5 row 4 row, as shown in Figure 8, gate drivers is connected to display, the scanning display with ' OK ', source class driver is also connected with display, with ' row ', display screen 902 is scanned, the gate drivers needing is 5, the source class driver needing is 4, and description relation in the similar above-mentioned Fig. 4 A of the annexation of 5 gate drivers, the annexation of similar above-mentioned Fig. 5 of annexation of source class driver.
When display screen 902 is carried out to forward scan, gate drivers is to scan from top to bottom, and source class driver is from left to right to scan.
When display screen 902 is carried out to forward scan, first of the 1st gate drivers controlled pin and accepted a forward scan control signal, complete the scanning to display screen 902 the 1st row, and now, 4 source class drivers can be opened successively, by correspondence, transfer the video data in data register, the video data transmitting of the 1st row is shown in display screen 902, such as the 1st row demonstration is personage's hair,, after the forward scan by gate drivers and source class driver, personage's hair can be presented in display screen 902.
Further, after having curved the scanning of the 1st row, this forward scan control signal can send first of the 2nd gate drivers to and control pin, complete the scanning to display screen 902 the 2nd row, and now, 4 source class drivers can be opened successively, by correspondence, transfer the video data in data register, the video data transmitting of the 2nd row is shown in display screen 902, such as the 2nd row demonstration is personage's forehead,, after the forward scan by gate drivers and source class driver, personage's forehead also can be presented in display screen 902.
Scanning successively, until after the 5th gate drivers scan display screen 902, such as the 5th behavior personage's pin, by the video data transmitting of the 5th row, to after in display screen 902, complete character image can be presented in display screen 902.
When display screen 902 is carried out to reverse scan, gate drivers is to scan from the bottom up, and source class driver is to scan from right to left.
When display screen 902 is carried out to reverse scan, the 3rd of the 1st gate drivers controlled pin and accepted a reverse scan control signal, and by the effect of bypass circuit, this reverse scan control signal is sent to second of the 5th gate drivers and controls pin, make the 5th gate drivers first start display screen 902 to scan, and now, 4 source class drivers can be opened successively, by correspondence, transfer the video data in data register, the video data transmitting of the 5th row is shown in display screen 902, and differently from above-mentioned forward scan be here, because reverse scan is to start scanning from the 5th row video data of display screen 902, the pin that can first scan character image starts scanning, scan down like this, contrary with the image that originally need to be presented on display screen 902, now, just need to video data be oppositely stored in data register, and by the level that exists in source electrode driver, control the effect of pin, the video data that is about to originally be presented in the 1st row is shown in the 5th row, by that analogy, complete character image is presented in display screen 902.
And in embodiment tri-, also announced a kind of electronic equipment, wherein, as shown in Figure 9, comprise a video data processing unit 901; Display screen 902, is connected with video data processing unit 901, and wherein, it is capable that display screen 902 has M, and M is more than or equal to 2 integer.
Further, when display screen 902 forwards are placed, the capable video data of i from video data processing unit 901 can be presented at the i of display screen 902 capable on; Display screen 902 when being inverted, the capable video data of i from video data processing unit 901 can be presented at the M-i+1 of display screen 902 capable on.
By one or more embodiment of the present invention, can be achieved as follows technique effect:
First, by add to control pin at gate drivers, and bypass circuit makes the technical scheme in the application can realize reverse scan, and do not need to use a large amount of extra shift registers.
Secondly, gate drivers, by accepting the forward scan control signal of time schedule controller, is controlled pin from the first control pin and second display screen is carried out to forward scan; And by accepting the reverse scan control signal of time schedule controller, from the 3rd, control this signal to the second control pin of pin bypass, since the second control pin, display screen is carried out to reverse scan, to realize the bilateral scanning of display screen, the cabling that only need to change gate drivers just can be realized the bilateral scanning of display screen, cost is low, good stability.
Again, when gate drivers carries out reverse scan, by the change of low and high level on source class driver, and coordinate data register to realize the reverse transfer of data, can reach when to display screen reverse scan, realize the technique effect that forward is watched.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.
Claims (7)
1. a driving circuit, is characterized in that, comprising:
M gate drivers, is connected with a display screen, and wherein, in a described M gate drivers, each gate drivers comprises the first control pin, and second controls pin, and the 3rd controls pin, and the 4th controls pin; Wherein, described first controls pin is used for receiving forward scan control signal, and described second controls pin is used for receiving reverse scan control signal; Described the 3rd control pin and the described the 4th is controlled pin and is connected; The 3rd control pin that the 4th of i gate drivers controlled pin and i+1 gate drivers is connected, the second control pin that the 4th of M gate drivers controlled pin and described M gate drivers is connected, described M is more than or equal to 2 integer, and described i is more than or equal to 1 and be less than the integer of M;
In a described M gate drivers, each gate drivers also comprises: bypass circuit, is connected with each gate drivers in a described M gate drivers; Wherein, when the 3rd of the 1st gate drivers controlled pin and received the reverse scan control signal corresponding with i gate drivers, by M bypass circuit in a described M gate drivers, make second of i gate drivers control pin and receive described reverse scan control signal, so that open successively each source electrode driver a described N source electrode driver from N to 1, and the described display screen capable video data transmitting of M-i+1 being arrived by a described N source electrode driver, for described display screen, show;
N source electrode driver, is connected with described display screen, and wherein N is more than or equal to 1 integer;
Wherein, when the first control pin of described i gate drivers receives described forward scan control signal, from 1 to N, open successively each source electrode driver a described N source electrode driver, and by a described N source electrode driver, the capable video data transmitting of i is arrived to described display screen, for described display screen, show;
Wherein, when the second control pin of described i gate drivers receives reverse scan control signal, from N to 1, open successively each source electrode driver a described N source electrode driver, and the described display screen capable video data transmitting of M-i+1 being arrived by a described N source electrode driver, for described display screen, show.
2. driving circuit as claimed in claim 1, it is characterized in that, in a described N source electrode driver, each source electrode driver also comprises: level is controlled pin, by described level, control pin and the level of described each source electrode driver can be set as to high level or low level, latch described video data, when the first control pin of described i gate drivers receives described forward scan control signal, by a described N source electrode driver, the capable video data transmitting of i is arrived to described display screen, for described display screen, show; Or
When the second control pin of described i gate drivers receives reverse scan control signal, the described display screen capable video data transmitting of M-i+1 being arrived by a described N source electrode driver, shows for described display screen.
3. a display screen, is characterized in that, comprising:
Display unit;
Driving circuit as described in arbitrary claim in claim 1-2, is connected with described display unit, and wherein, described driving circuit comprises M gate drivers and N source electrode driver, and M is more than or equal to 2 integer, and N is more than or equal to 1 integer;
Time schedule controller, is connected with a described M gate drivers, for generating forward scan control signal or the reverse scan control signal of controlling a described M gate drivers;
Wherein, under the control of described forward scan control signal, by described driving circuit, the capable video data of i can be presented at i on described display unit capable on; Under the control of described reverse scan control signal, by described driving circuit, the capable video data of i can be presented at the M-i+1 of described display unit capable on.
4. display screen as claimed in claim 3, is characterized in that, described time schedule controller comprises:
Forward scan control signal pin, controls pin with first of the 1st gate drivers in a described M gate drivers and is connected;
Reverse scan control signal pin, controls pin with the 3rd of the 1st gate drivers in a described M gate drivers and is connected.
5. display screen as claimed in claim 3, is characterized in that, described time schedule controller also comprises:
The first resistance, is connected to first of described forward scan control signal pin and described the 1st gate drivers and controls between pin;
The second resistance, is connected to the 3rd of described reverse scan control signal pin and described the 1st gate drivers and controls between pin.
6. display screen as claimed in claim 3, is characterized in that, described display screen also comprises:
N data register, corresponding one by one with a described N source electrode driver, wherein, in a described N source electrode driver, j source electrode driver is connected with j data register in a described N data register, and wherein, j is more than or equal to 1 integer that is less than or equal to N.
7. an electronic equipment, is characterized in that, comprising:
One video data processing unit;
Display screen as described in arbitrary claim in claim 3-6, is connected with described video data processing unit, and wherein, it is capable that described display screen has M, and M is more than or equal to 2 integer;
Wherein, when described display screen forward is placed, the capable video data of i from described video data processing unit can be presented at the i of described display screen capable on;
Described display screen when being inverted, the capable video data of i from described video data processing unit can be presented at the M-i+1 of described display screen capable on.
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| CN102622988A CN102622988A (en) | 2012-08-01 |
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| CN1674074A (en) * | 2004-03-24 | 2005-09-28 | 三星Sdi株式会社 | Light emitting display and driving method thereof |
| CN101625495A (en) * | 2009-08-18 | 2010-01-13 | 友达光电股份有限公司 | Display device with bidirectional scanning mechanism and grid signal scanning method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4593071B2 (en) * | 2002-03-26 | 2010-12-08 | シャープ株式会社 | Shift register and display device having the same |
| KR101790705B1 (en) * | 2010-08-25 | 2017-10-27 | 삼성디스플레이 주식회사 | Bi-directional scan driver and display device using the same |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1674074A (en) * | 2004-03-24 | 2005-09-28 | 三星Sdi株式会社 | Light emitting display and driving method thereof |
| CN101625495A (en) * | 2009-08-18 | 2010-01-13 | 友达光电股份有限公司 | Display device with bidirectional scanning mechanism and grid signal scanning method thereof |
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Address after: 266100 Zhuzhou Road, Laoshan District, Shandong, No. 151, No. Patentee after: Hisense Video Technology Co.,Ltd. Address before: 266100 Zhuzhou Road, Laoshan District, Shandong, No. 151, No. Patentee before: HISENSE ELECTRIC Co.,Ltd. |
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