CN106205527B - A kind of DEMUX liquid crystal display panel and its driving method - Google Patents
A kind of DEMUX liquid crystal display panel and its driving method Download PDFInfo
- Publication number
- CN106205527B CN106205527B CN201610574425.2A CN201610574425A CN106205527B CN 106205527 B CN106205527 B CN 106205527B CN 201610574425 A CN201610574425 A CN 201610574425A CN 106205527 B CN106205527 B CN 106205527B
- Authority
- CN
- China
- Prior art keywords
- demux
- switching tube
- group
- clock signal
- kth
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0264—Details of driving circuits
Abstract
The embodiment of the present invention provides a kind of driving method of DEMUX liquid crystal display panel, comprising: when k-th of clock signal triggers, obtains the state of kth group DEMUX switching tube, and obtain the state of+1 group DEMUX switching tube of kth；Wherein, 1≤k ﹤ m；If the state of the kth group DEMUX switching tube is to open, and the state of+1 group DEMUX switching tube of the kth is to close, then in+1 clock signal triggering of kth, driving+1 group DEMUX switching tube of kth is opened.In addition, the embodiment of the present invention also provides a kind of DEMUX liquid crystal display panel.The driving method of the DEMUX liquid crystal display panel can reduce system resource required when generating DEMUX driving signal, and reduce influence of the signal delay to DEMUX switching circuit.
Description
Technical field
The present invention relates to field of liquid crystal display more particularly to a kind of DEMUX liquid crystal display panels and its driving method.
Background technique
Currently, in the design process of liquid crystal display panel, in order to reduce the output channel number of driving chip, by
Increase DEMUX switching circuit in the driving circuit of liquid crystal display panel, to realize the output channel of driving chip into demultiplication
It is few.With the development of raising and the cost control of liquid crystal display panel integrated level, it has been proposed that 1 pair 6 of DEMUX liquid crystal display
Panel, as shown in Figure 1.The DEMUX liquid crystal display panel may be implemented for the data voltage timesharing that 1 channel exports to be supplied to pair
6 data lines answered.However, DEMUX liquid crystal display panel needs driving chip output 6 within the time of each scan line
DEMUX driving signal, as shown in figure 1 srcsw (a)~srcsw (f).For existing 1 pair 3 or 1 pairs 4 of DEMUX LCD display
Plate, it is only necessary to 3 to 4 DEMUX driving signals are not high to the signal output demand of driving chip but more for 1 pair 6 or 1 pairs
The appearance of the DEMUX liquid crystal display panel of quantity then needs driving chip output 6 or more within the time of a scan line
DEMUX driving signal.Bring signal delay will lead to DEMUX switching during the generation of excessive DEMUX driving signal
Switching tube in circuit is by fault open, to influence the Stability and veracity of pixel charging.
Summary of the invention
The embodiment of the present invention provides a kind of DEMUX liquid crystal display panel and its driving method, to reduce the letter of driving chip
Number output demand promotes DEMUX LCD display to signal delay occur during preventing the generation of DEMUX driving signal
Stability and veracity of the plate when pixel charges.
A kind of DEMUX liquid crystal display panel, including array substrate, DEMUX switching circuit, Logic control module and driving core
Piece；
The array substrate includes n sub-pixel column, each sub-pixel column includes multiple sub-pixels；
The DEMUX switching circuit includes m control terminal, m group DEMUX switching tube, n/m input terminal and n output end；
Each described control terminal is connect with DEMUX switching tube described in one group；Each described input terminal respectively with the driving chip
Connection, for obtaining data voltage from the driving chip；Each described output end connects with a sub-pixel column respectively
It connects, for when the DEMUX switching tube is opened, the data voltage to be supplied to corresponding sub-pixel；Wherein, m ﹤ n；
The Logic control module is electrically connected with the driving chip and the m control terminal, is used for from the drive
Dynamic chip obtains clock signal, and when k-th of clock signal triggers, obtains the state of kth group DEMUX switching tube, and obtain
The state of+1 group DEMUX switching tube of kth；Wherein, 1≤k ﹤ m；
If the state of the kth group DEMUX switching tube is to open, and the state of+1 group DEMUX switching tube of the kth is to close
It closes, then in+1 clock signal triggering of kth, driving+1 group DEMUX switching tube of kth is opened.
Wherein, the Logic control module, is also used to:
At the end of k-th of clock signal, the kth group DEMUX switching tube is driven to close.
Wherein, the Logic control module, is also used to:
When m-th of clock signal triggers, the state of m group DEMUX switching tube is obtained, and obtains the 1st group of DEMUX switch
The state of pipe；
If the state of the m group DEMUX switching tube is to open, and the state of the 1st group of DEMUX switching tube is to close
It closes, then when the m+1 clock signal triggers, the 1st group of DEMUX switching tube is driven to open.
Wherein, the Logic control module, is also used to:
At the end of m-th of clock signal, the M group DEMUX switching tube is driven to close.
Wherein, when the triggering that the opening time of the kth group DEMUX switching tube is equal to k-th of clock signal continues
Between, wherein 1≤k≤m.
A kind of driving method of DEMUX liquid crystal display panel, comprising:
When k-th of clock signal triggers, the state of kth group DEMUX switching tube is obtained, and obtain+1 group DEMUX of kth and open
Close the state of pipe；Wherein, 1≤k ﹤ m；
If the state of the kth group DEMUX switching tube is to open, and the state of+1 group DEMUX switching tube of the kth is to close
It closes, then in+1 clock signal triggering of kth, driving+1 group DEMUX switching tube of kth is opened.
Wherein, described before+1 clock signal triggering of kth, the method also includes:
At the end of k-th of clock signal, the kth group DEMUX switching tube is driven to close.
Wherein, after+1 group DEMUX switching tube of driving kth is opened, the method also includes:
When m-th of clock signal triggers, the state of m group DEMUX switching tube is obtained, and obtains the 1st group of DEMUX switch
The state of pipe；
If the state of the m group DEMUX switching tube is to open, and the state of the 1st group of DEMUX switching tube is to close
It closes, then when the m+1 clock signal triggers, the 1st group of DEMUX switching tube is driven to open.
Wherein, described before the m+1 clock signal triggers, the method also includes:
At the end of m-th of clock signal, the M group DEMUX switching tube is driven to close.
Wherein, when the triggering that the opening time of the kth group DEMUX switching tube is equal to k-th of clock signal continues
Between, wherein 1≤k≤m.
The DEMUX liquid crystal display panel is by being arranged institute between the driving chip and the DEMUX switching circuit
Logic control module is stated, and when k-th of clock signal triggers, kth group DEMUX switch is obtained by the Logic control module
The state of pipe, and obtain the state of+1 group DEMUX switching tube of kth；And then in+1 clock signal triggering of kth, according to k-th
The state of clock signal+1 group DEMUX switching tube of state and the kth of kth group DEMUX switching tube when triggering, to control
The state of+1 group DEMUX switching tube of kth, so that the DEMUX for only needing driving chip to generate the 1st group of DEMUX switching tube drives
Dynamic signal can be recycled by the Logic control module and the DEMUX of subsequent each group DEMUX switching tube is driven to open or close,
The signal output demand that driving chip can be effectively reduced prevents signal delay occur during the generation of DEMUX driving signal,
And then promote Stability and veracity of the DEMUX liquid crystal display panel when pixel charges.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of DEMUX liquid crystal display panel in the prior art；
Fig. 2 is the structural schematic diagram of DEMUX liquid crystal display panel provided in an embodiment of the present invention；
Fig. 3 is the logical operation true value relationship schematic diagram of the Logic control module of DEMUX liquid crystal display panel shown in Fig. 2；
Fig. 4 is the working sequence schematic diagram of the Logic control module of DEMUX liquid crystal display panel shown in Fig. 2；
Fig. 5 is the first pass schematic diagram of the driving method of DEMUX liquid crystal display panel provided in an embodiment of the present invention；
Fig. 6 is the second procedure schematic diagram of the driving method of DEMUX liquid crystal display panel provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
For ease of description, may be used herein such as " ... under ", " ... below ", "lower", " ... on ", "upper"
Spaces relative terms are waited to describe the relationship of an elements or features and another (a little) elements or features as illustrated in the drawing.
It is appreciated that be referred to as in another element or layer "upper", " being connected to " or " being couple to " another element when an element or layer or
When layer, it can directly on another element or layer, be directly connected to or be couple to another element or layer, or there may be occupy
Between element or layer.On the contrary, working as on an element referred to as " directly existing " another element or layer, " being directly connected to " or " direct coupling
It is connected to " another element or when layer, intervening elements or layer is not present.
It is appreciated that terminology used here is merely to description specific embodiment, is not intended to limit the present invention.Herein
In use, clearly stating unless the context otherwise, otherwise singular " one " and "the" are also intended to including plural form.Further
Ground, when used in this manual, term " includes " and/or "comprising" show the feature, entirety, step, operation, element
And/or the presence of component, but it is not excluded for other one or more features, entirety, step, operation, element, component and/or its group
The presence or increase of conjunction.
Unless otherwise defined, all terms (including technical terms and scientific terms) used herein all have institute of the present invention
The normally understood identical meanings of those of ordinary skill institute in category field.It will be further understood that, defined in such as universaling dictionary
Term, the meaning consistent with their meanings in the context of related fields otherwise should be interpreted as having, without answering
It is interpreted the meaning of idealization or over formalization, unless being clearly defined herein.
Referring to Fig. 2, first embodiment of the invention provides a kind of DEMUX liquid crystal display panel 100, including array substrate
110, DEMUX switching circuit 130, Logic control module 150 and driving chip 170；
The array substrate 110 includes n sub-pixel column 111, each sub-pixel column 111 includes multiple sub-pixels
1111；
The DEMUX switching circuit 130 includes m control terminal 131, m group DEMUX switching tube 133, n/m input terminal 135
And n output end 137；Each described control terminal 131 is connect with DEMUX switching tube 133 described in one group；Each described input
End 135 is connect with the driving chip 170 respectively, for obtaining data voltage from the driving chip 170；Each is described defeated
Outlet 137 is connect with a sub-pixel column 111 respectively, is used for when the DEMUX switching tube 133 is opened, by the number
Corresponding sub-pixel 1111 is supplied to according to voltage；Wherein, m ﹤ n；
The Logic control module 150 is electrically connected with the driving chip 170 and the m control terminal 131, is used for
Clock signal (CLK) is obtained from the driving chip 170, and when k-th of clock signal triggers, obtains kth group DEMUX switch
The state of pipe, and obtain the state of+1 group DEMUX switching tube of kth；Wherein, 1≤k ﹤ m；
If the state of the kth group DEMUX switching tube is to open, and the state of+1 group DEMUX switching tube of the kth is to close
It closes, then in+1 clock signal triggering of kth, driving+1 group DEMUX switching tube of kth is opened.
It in one embodiment,, can be by described when the 1st clock signal triggers after completing system initialization
Driving chip 170 is that the DEMUX switching circuit 130 provides the 1st group of driving signal DEMUX 1, to drive the 1st group of DEMUX to open
Close Guan Kaiqi.At this point, the available state to the 1st group of DEMUX switching tube of the Logic control module 150 is to open,
That is DEMUX 1 is 1；Simultaneously as the 2nd group of DEMUX switching tube does not receive any drive when the 1st clock signal triggers
Dynamic signal, therefore the Logic control module 150 gets the state of the 2nd group of DEMUX switching tube to close, i.e., DEMUX 2 is
0.In the case where meeting above-mentioned condition, when the 2nd clock signal triggers, then the 2nd is provided by the Logic control module 150
Group driving signal gives the 2nd group of DEMUX switching tube, i.e. control DEMUX 2 is 1 by 0 jump, thus the 2nd group of DEMUX switching tube of driving
It opens.And so on, the 3rd group of drive can be sequentially generated by the Logic control module 150 under the trigger action of clock signal
Dynamic signal, kth group driving signal, until m group driving signal DEMUX m.Therefore, by the way that the Logic control module is arranged
150, only needing the driving chip 170 is that the DEMUX switching circuit 130 provides any one group of driving signal DEMUX k
Subsequent each group driving signal is sequentially generated by the Logic control module 150, so as to which the driving chip 170 is effectively reduced
Signal output demand, save hardware resource.In the present embodiment, refer to clock signal when k-th of clock signal triggers
At the time of there is k-th of rising edge and occur.
Referring to Fig. 3, Fig. 3 show the logical operation true value relationship schematic diagram of the Logic control module 150.Specifically
Ground, when k-th of clock signal (CLK) is triggered, if it is 0 that DEMUX k, which is 1, DEMUX k+1, then in+1 clock signal touching of kth
When hair, output DEMUX k+1 is 1；When k-th of clock signal (CLK) is triggered, if it is 1 that DEMUX k, which is 1, DEMUX k+1, then
In kth+1 clock signal triggering, output DEMUX k+1 is 0, it will be understood that when practical application, should be avoided DEMUX k with
The case where DEMUX k+1 is 1 simultaneously；When k-th of clock signal (CLK) is triggered, if it is 1 that DEMUX k, which is 0, DEMUX k+1,
Then in+1 clock signal triggering of kth, output DEMUX k+1 is 0；When k-th of clock signal (CLK) is triggered, if DEMUX
K is that 0, DEMUX k+1 is 0, then in+1 clock signal triggering of kth, output DEMUX k+1 is 0.
In one embodiment, the Logic control module 150, is also used to:
At the end of k-th of clock signal, the kth group DEMUX switching tube is driven to close.
If being appreciated that, when k-th of clock signal triggers, the state of the kth group DEMUX switching tube is unlatching, and
The state of+1 group DEMUX switching tube of kth is to close, then in+1 clock signal triggering of kth, drives+1 group DEMUX of kth
Switching tube is opened.To prevent when driving+1 group DEMUX switching tube of kth to open, kth group DEMUX switching tube is still within unlatching
The case where occur, at the end of k-th of clock signal, the kth group can be driven by the Logic control module 150
DEMUX switching tube is closed, i.e. control kth group driving signal DEMUX k is 0 by 1 jump, to guarantee to believe in any one clock
Number triggering when, only one group of DEMUX switching tube is in the open state.In the present embodiment, at the end of k-th of clock signal
Refer at the time of the failing edge of k-th of clock signal occurs.
In one embodiment, the Logic control module 150, is also used to:
When m-th of clock signal triggers, the state of m group DEMUX switching tube is obtained, and obtains the 1st group of DEMUX switch
The state of pipe；
If the state of the m group DEMUX switching tube is to open, and the state of the 1st group of DEMUX switching tube is to close
It closes, then when the m+1 clock signal triggers, the 1st group of DEMUX switching tube is driven to open.
It is appreciated that within a row period, when being sequentially completed triggering from the 1st clock signal to m-th of clock signal
When, the 1st group of DEMUX switching tube to m group DEMUX switching tube is sequentially completed unlatching in the way of the time-division, i.e., with described 1 group
DEMUX switching tube to the sub-pixel that m group DEMUX switching tube connects is sequentially completed charging.When the triggering of next clock signal,
It will start a new row period, at this time, it may be necessary to obtain the state of the 1st group of DEMUX switching tube, and by the logic control mould
Block 150 generates next row according to the state of the m group DEMUX switching tube and the state of the 1st group of DEMUX switching tube
Period corresponding first group of driving signal DEMUX 1.Specifically, when the state of the m group DEMUX switching tube be open, and
M group driving signal DEMUX m is 1, and the state of the 1st group of DEMUX switching tube is to close, i.e. the 1st group of driving signal
DEMUX 1 is 0, then when the m+1 clock signal triggers, being jumped by the 1st group of driving signal DEMUX 1 of control by 0 is 1,
And then the 1st group of DEMUX switching tube is driven to open.
Similarly, for guarantee any one clock signal trigger when, only one group of DEMUX switching tube is in opening state
State, the Logic control module 150, is also used to:
At the end of m-th of clock signal, the M group DEMUX switching tube is driven to close.
Referring to Fig. 4, being the working sequence schematic diagram of the Logic control module 150 shown in Fig. 4.Wherein, when CLK is
Clock signal, CLK 1, CLK 2 ..., CLK k ... CLK m be respectively m triggering, DEMUX 1, DEMUX 2 ..., DEMUX
K ..., DEMUX m is respectively m group driving signal, and the m group DEMUX switching tube is successively driven for timesharing.It can be with from Fig. 4
Find out, the 1st driving signal DEMUX 1 is 1 by 0 jump when the 1st clock signal clk 1 is triggered, and the 2nd driving signal
DEMUX 2 is 0；It is closed since DEMUX 1 and DEMUX 2 meet logic shown in Fig. 3 within the duration of the 1st clock signal
System, therefore, when the 2nd clock signal clk 2 triggers, the Logic control module 150 controls the 2nd group of driving signal and is jumped by 0
Become 1, and continues to jump back 0 at the end of to CLK 2.And so on, it is similar in the triggering of each clock signal, it will be previous
The duration of group one clock signal of driving signal rearward displacement.When m-th of clock signal triggers, m group is driven and is believed
The duration of number one clock signal of rearward displacement, and the 1st group of driving signal as next row period.Therefore, one
In kind embodiment, the Logic control module 150 can be realized using shift register.
It is appreciated that the triggering that the opening time of the kth group DEMUX switching tube is equal to k-th of clock signal is held
The continuous time, wherein 1≤k≤m.It therefore, is that can pass through adjusting pair when the charging time for needing to adjust different subpixel column 111
The triggering duration for the clock signal answered is realized.
Referring to Fig. 5, second embodiment of the invention provides a kind of driving method of DEMUX liquid crystal display panel, comprising:
Step S201: when k-th of clock signal triggers, the state of kth group DEMUX switching tube is obtained, and obtain kth+1
The state of group DEMUX switching tube；Wherein, 1≤k ﹤ m；
Step S202: if the state of the kth group DEMUX switching tube is to open, and+1 group DEMUX switching tube of the kth
State be to close, then in kth+1 clock signal triggering, driving+1 group DEMUX switching tube of kth is opened.
Wherein, described before+1 clock signal triggering of kth, the method also includes:
At the end of k-th of clock signal, the kth group DEMUX switching tube is driven to close.
Referring to Fig. 6, in one embodiment, after+1 group DEMUX switching tube of driving kth is opened, the side
Method further include:
Step S301: when m-th of clock signal triggers, the state of m group DEMUX switching tube is obtained, and obtain the 1st group
The state of DEMUX switching tube；
Step S302: if the state of the m group DEMUX switching tube is to open, and the 1st group of DEMUX switching tube
State is to close, then when the m+1 clock signal triggers, the 1st group of DEMUX switching tube is driven to open.
Wherein, described before the m+1 clock signal triggers, the method also includes:
At the end of m-th of clock signal, the M group DEMUX switching tube is driven to close.
It is appreciated that the triggering that the opening time of the kth group DEMUX switching tube is equal to k-th of clock signal is held
The continuous time, wherein 1≤k≤m.
It is appreciated that the specific implementation of each step in the driving method of DEMUX liquid crystal display panel described in the present embodiment also
It is referred to associated description of the Fig. 2 into embodiment illustrated in fig. 4, details are not described herein again.
The DEMUX liquid crystal display panel is by being arranged institute between the driving chip and the DEMUX switching circuit
Logic control module is stated, and when k-th of clock signal triggers, kth group DEMUX switch is obtained by the Logic control module
The state of pipe, and obtain the state of+1 group DEMUX switching tube of kth；And then in+1 clock signal triggering of kth, according to k-th
The state of clock signal+1 group DEMUX switching tube of state and the kth of kth group DEMUX switching tube when triggering, to control
The state of+1 group DEMUX switching tube of kth, so that the DEMUX for only needing driving chip to generate the 1st group of DEMUX switching tube drives
Dynamic signal can be recycled by the Logic control module and the DEMUX of subsequent each group DEMUX switching tube is driven to open or close,
The signal output demand that driving chip can be effectively reduced prevents signal delay occur during the generation of DEMUX driving signal,
And then promote Stability and veracity of the DEMUX liquid crystal display panel when pixel charges.
It is appreciated that above disclosed is only presently preferred embodiments of the present invention, this cannot be limited with this certainly
The interest field of invention, those skilled in the art can understand all or part of the processes for realizing the above embodiment, and according to
Equivalent variations made by the claims in the present invention, still belongs to the scope covered by the invention.
Claims (10)
1. a kind of DEMUX liquid crystal display panel, which is characterized in that including array substrate, DEMUX switching circuit, logic control mould
Block and driving chip；
The array substrate includes n sub-pixel column, each sub-pixel column includes multiple sub-pixels；
The DEMUX switching circuit includes m control terminal, m group DEMUX switching tube, n/m input terminal and n output end；It is each
A control terminal is connect with DEMUX switching tube described in one group；Each described input terminal is connect with the driving chip respectively,
For obtaining data voltage from the driving chip；Each described output end is connect with a sub-pixel column respectively, is used
In when the DEMUX switching tube is opened, the data voltage is supplied to corresponding sub-pixel；Wherein, m ﹤ n；
The Logic control module is electrically connected with the driving chip and the m control terminal, is used for from the driving core
Piece obtains clock signal, and the clock signal source is exported in driving chip a port to one of Logic control module
Port, and when k-th of clock signal triggers, the state of kth group DEMUX switching tube is obtained, and obtain+1 group DEMUX of kth and open
Close the state of pipe；Wherein, 1≤k ﹤ m；
If the state of the kth group DEMUX switching tube is to open, and the state of+1 group DEMUX switching tube of the kth is to close,
Then in+1 clock signal triggering of kth, driving+1 group DEMUX switching tube of kth is opened.
2. DEMUX liquid crystal display panel as described in claim 1, which is characterized in that the Logic control module is also used to:
At the end of k-th of clock signal, the kth group DEMUX switching tube is driven to close.
3. DEMUX liquid crystal display panel as claimed in claim 1 or 2, which is characterized in that the Logic control module is also used
In:
When m-th of clock signal triggers, the state of m group DEMUX switching tube is obtained, and obtain the 1st group of DEMUX switching tube
State；
If the state of the m group DEMUX switching tube is to open, and the state of the 1st group of DEMUX switching tube is to close, then
When the m+1 clock signal triggers, the 1st group of DEMUX switching tube is driven to open.
4. DEMUX liquid crystal display panel as claimed in claim 3, which is characterized in that the Logic control module is also used to:
At the end of m-th of clock signal, the m group DEMUX switching tube is driven to close.
5. DEMUX liquid crystal display panel as described in claim 1, which is characterized in that the kth group DEMUX switching tube is opened
Open triggering duration of the time equal to k-th of clock signal, wherein 1≤k≤m.
6. a kind of driving method of DEMUX liquid crystal display panel, which is characterized in that wherein, DEMUX liquid crystal display panel includes battle array
Column substrate, DEMUX switching circuit, Logic control module and driving chip；
The array substrate includes n sub-pixel column, each sub-pixel column includes multiple sub-pixels；
The DEMUX switching circuit includes m control terminal, m group DEMUX switching tube, n/m input terminal and n output end；It is each
A control terminal is connect with DEMUX switching tube described in one group；Each described input terminal is connect with the driving chip respectively,
For obtaining data voltage from the driving chip；Each described output end is connect with a sub-pixel column respectively, is used
In when the DEMUX switching tube is opened, the data voltage is supplied to corresponding sub-pixel；Wherein, m ﹤ n；
The Logic control module is electrically connected with the driving chip and the m control terminal, is used for from the driving core
Piece obtains clock signal, and the clock signal source is exported in driving chip a port to one of Logic control module
Port；
The driving method of the DEMUX liquid crystal display panel includes:
When k-th of clock signal triggers, the state of kth group DEMUX switching tube is obtained, and obtain+1 group DEMUX switching tube of kth
State；Wherein, 1≤k ﹤ m；
If the state of the kth group DEMUX switching tube is to open, and the state of+1 group DEMUX switching tube of the kth is to close,
Then in+1 clock signal triggering of kth, driving+1 group DEMUX switching tube of kth is opened.
7. method as claimed in claim 6, which is characterized in that described before+1 clock signal triggering of kth, the method
Further include:
At the end of k-th of clock signal, the kth group DEMUX switching tube is driven to close.
8. method according to claim 6 or 7, which is characterized in that after+1 group DEMUX switching tube of driving kth is opened,
The method also includes:
When m-th of clock signal triggers, the state of m group DEMUX switching tube is obtained, and obtain the 1st group of DEMUX switching tube
State；
If the state of the m group DEMUX switching tube is to open, and the state of the 1st group of DEMUX switching tube is to close, then
When the m+1 clock signal triggers, the 1st group of DEMUX switching tube is driven to open.
9. method according to claim 8, which is characterized in that described before the m+1 clock signal triggers, the method
Further include:
At the end of m-th of clock signal, the m group DEMUX switching tube is driven to close.
10. method as claimed in claim 6, which is characterized in that the opening time of the kth group DEMUX switching tube is equal to institute
State the triggering duration of k-th of clock signal, wherein 1≤k≤m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610574425.2A CN106205527B (en) | 2016-07-20 | 2016-07-20 | A kind of DEMUX liquid crystal display panel and its driving method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610574425.2A CN106205527B (en) | 2016-07-20 | 2016-07-20 | A kind of DEMUX liquid crystal display panel and its driving method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106205527A CN106205527A (en) | 2016-12-07 |
| CN106205527B true CN106205527B (en) | 2019-05-07 |
Family
ID=57494528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610574425.2A Active CN106205527B (en) | 2016-07-20 | 2016-07-20 | A kind of DEMUX liquid crystal display panel and its driving method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106205527B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108376536A (en) * | 2018-04-24 | 2018-08-07 | 武汉华星光电技术有限公司 | De-mux drives framework, round display panel and smartwatch |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005141169A (en) * | 2003-11-10 | 2005-06-02 | Nec Yamagata Ltd | Liquid crystal display device and its driving method |
| CN100524401C (en) * | 2005-11-21 | 2009-08-05 | 精工爱普生株式会社 | Electro-optical apparatus, method for driving electro-optical apparatus, method for monitoring voltage, and electronic device |
| CN1952765A (en) * | 2006-11-07 | 2007-04-25 | 友达光电股份有限公司 | Allocation structure of demultiplexer and LCD panel comprising the same |
| US9224352B2 (en) * | 2014-01-15 | 2015-12-29 | Innolux Corporation | Display device with de-multiplexers having different de-multiplex ratios |
| CN104064154B (en) * | 2014-05-26 | 2016-07-06 | 深圳市华星光电技术有限公司 | The circuit structure of liquid crystal panel and the driving method of liquid crystal panel |
-
2016
- 2016-07-20 CN CN201610574425.2A patent/CN106205527B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106205527A (en) | 2016-12-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103474040B (en) | Grid electrode drive unit, grid electrode drive circuit and display device | |
| EP3125250B1 (en) | Gate driving circuit and driving method therefor and display device | |
| CN104795041B (en) | A kind of driving method of array base palte, array base palte, display panel and display device | |
| CN106531120B (en) | Shift register cell and its driving method, gate driving circuit and display device | |
| US9785280B2 (en) | Touch driving circuit, display device and driving method thereof | |
| CN105427824B (en) | There is GOA circuit, array base palte and the display floater of electric leakage compensating module | |
| CN108648705B (en) | Shifting register unit, driving method, grid driving circuit and display device | |
| CN104360781B (en) | Driver element, drive circuit, contact panel and the driving method of touch control electrode | |
| CN104835465B (en) | Shift register, gate driving circuit and liquid crystal display panel | |
| CN108492791B (en) | A kind of display driver circuit and its control method, display device | |
| CN101996684B (en) | Shift register and touch controller | |
| US9965986B2 (en) | Shift register unit and driving method thereof, shift register and display device | |
| US10068658B2 (en) | Shift register unit, driving circuit and method, array substrate and display apparatus | |
| CN104240631A (en) | GOA circuit, driving method for GOA circuit and display device for GOA circuit | |
| CN107134268B (en) | Shift register, gate driving circuit and driving method and liquid crystal display | |
| CN104297969A (en) | Liquid crystal display panel, discharging method thereof and display device | |
| CN108648711A (en) | A kind of array substrate, display panel and display device | |
| CN104820520A (en) | Array substrate, touch display panel and driving method of array substrate | |
| CN107507597A (en) | Image display panel and grid drive circuit thereof | |
| CN109272960A (en) | Gate driving circuit and display device | |
| CN104575409A (en) | Liquid crystal display and bidirectional shift register thereof | |
| CN101349820B (en) | Data driver and LCD device using the same | |
| CN109192154A (en) | Gate driving circuit and display device | |
| CN108364622A (en) | Shift register cell and its driving method, driving device and display device | |
| US20230097132A1 (en) | Array substrate and driving method, display panel and touch display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |