CN108447435A - Data selecting module, data selecting method, data selection unit and display device - Google Patents
Data selecting module, data selecting method, data selection unit and display device Download PDFInfo
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- CN108447435A CN108447435A CN201810271614.1A CN201810271614A CN108447435A CN 108447435 A CN108447435 A CN 108447435A CN 201810271614 A CN201810271614 A CN 201810271614A CN 108447435 A CN108447435 A CN 108447435A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
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Abstract
A kind of data selecting module of present invention offer, data selecting method, data selection unit and display device.The data selecting module is used to provide data voltage for sub-pix, and the data selecting module includes N number of switch submodule；N is the integer more than 1；The control terminal of n-th switch submodule is connect with the n-th control line；The first end of N number of switch submodule is all connect with a column data line, and the second end of N number of switch submodule is all connect with a sub-pix；Under control of the n-th switch submodule for the n-th control signal on n-th control line, the connection between the first end and the second end of the n-th switch submodule for the n-th switch submodule that is turned on or off is controlled；N is the integer less than or equal to N.The job stability of data selecting module of the present invention is high, and the charging ability of data selecting module is strong.
Description
Technical field
The present invention relates to data selection technique field more particularly to a kind of data selecting module, data selecting method, data
Selecting unit and display device.
Background technology
It is exactly that can reduce the quantity of data line that MUX (multi-path choice) technology, which is introduced into the purpose in display module, can be with
The quantity of driving IC (Integrated Circuit, integrated circuit) is reduced to reduce cost.
Corresponding to the display module using oxide thin film transistor, multi-path choice technology also in development, aoxidizes at present
The mobility of object thin film transistor (TFT) can meet charge rate, but current main problem is the stabilization of oxide thin film transistor
Property is poor, and the threshold voltage shift of oxide thin film transistor is bigger, is unable to ensure reliability.When oxide thin film transistor
When positive excursion is very big, data voltage signal passes through data selecting module, pressure drop can be caused excessively high, it may appear that can not complete to align
In the areas AA (Active Area, effective display area) sub-pix charging the problem of.When the threshold voltage of the thin transistor of oxide is negative
To when drift, oxide thin film transistor is closed not perfect, it may appear that electric leakage causes colour cast and colour contamination.To sum up, number is influenced at present
It is sull crystal to be applied to most important problem in the display module using oxide thin film transistor according to selection technique
Stability of the pipe under bias.
Invention content
The purpose of the present invention is to provide a kind of data selecting module, data selecting method, data selection unit and displays
Device, it is long to solve the time that the switching transistor in the prior art in data selecting module is biased against, and is selected so as to cause data
The job stability of module is low, and the weak problem of charging ability of data selecting module.
In order to achieve the above object, the present invention provides a kind of data selecting modules, for providing data electricity for sub-pix
Pressure, the data selecting module includes N number of switch submodule；N is the integer more than 1；
The control terminal of n-th switch submodule is connect with the n-th control line；
The first end of N number of switch submodule is all connect with a column data line, the second end of N number of switch submodule
All it is connect with a sub-pix；
Under control of the n-th switch submodule for the n-th control signal on n-th control line, control conducting
Or disconnect this n-th switch submodule first end and this n-th switch submodule second end between connection；
N is the integer less than or equal to N.
When implementation, the n-th switch submodule includes the n-th switching transistor；
The grid of n-th switching transistor is the described n-th control terminal for switching submodule, n-th switching transistor
First extremely it is described n-th switch submodule first end, n-th switching transistor second extremely it is described n-th switch
The second end of module.
The present invention also provides a kind of data selecting methods, are applied to above-mentioned data selecting module, and a data provide rank
Section includes that the N number of data set gradually provide the period；
The data selecting method includes：
The n-th data that the stage includes are provided in the data, and the period is provided, the n-th control signal on the n-th control line
Control under, n-th switch submodule control conducting this n-th switch submodule first end and this n-th switch submodule second
Connection between end；
N is the integer more than 1, and n is the integer less than or equal to N.
When implementation, the n-th switch submodule includes the n-th switching transistor；
The data selecting method specifically includes：
The period is provided in n-th data, under the control of the n-th control signal on the n-th control line, the n-th switch is brilliant
Body pipe is connected, and all switching transistors in addition to n-th switching transistor that the data selecting module includes are turned off.
The present invention also provides a kind of data selecting methods, are applied to above-mentioned data selecting module, the data selection
Method includes：The stage is provided in a data,
N number of switch submodule that the data selecting module includes control for controlling signal on corresponding control line respectively
Under system, the connection between the first end and the second end of the switch submodule of the switch submodule is connected in control；
N is the integer more than 1.
When implementation, the n-th switch submodule includes the n-th switching transistor；N is the integer less than or equal to N；
The data selecting method specifically includes：Stage, the institute that the data selecting module includes are provided in the data
There is switching transistor to be all connected.
The present invention also provides a kind of data selection units, for providing data voltage for pixel unit, the pixel unit
Including M sub-pix, the data selection unit includes M data selecting modules as claimed in claim 1 or 2；M be more than
2 integer；
M data selecting modules correspond to m sub-pixes；
The first ends of all data voltage moulds that the data selection unit includes all switch submodules in the block all with
One column data line connects；
The second end for all switch submodules that m data selecting modules include all is connect with m sub-pixes；
The control terminal for the switch submodule that the data selecting module includes is connected with corresponding control line；
M is the integer less than or equal to M.
When implementation, which includes red sub-pixel, green sub-pixels and blue subpixels；The data selection is single
Member includes the first data selecting module, the second data selecting module and third data selecting module, wherein
First data selecting module is corresponding with the red sub-pixel, the second data selecting module and the green sub-pixels
Corresponding, the third data selecting module is corresponding with the blue subpixels；
The control terminal for the n-th switch submodule that first data selecting module includes is connect with the n-th red control line；
The control terminal for the n-th switch submodule that second data selecting module includes is connect with the n-th green control line；
The control terminal for the n-th switch submodule that the third data selecting module includes is connect with the n-th blue control line；
The second end for all switch submodules that first data selecting module includes all connects with the red sub-pixel
It connects；
The second end for all switch submodules that second data selecting module includes all connects with the green sub-pixels
It connects；
The second end for all switch submodules that the third data selecting module includes all connects with the blue subpixels
It connects；
N is the integer less than or equal to N；N is the integer more than 1.
The present invention also provides a kind of display module, including display base plate, the display module further include be set to it is described
Above-mentioned data selecting module on display base plate；
The data selecting module is connect with a column data line, which is also disposed on the display base plate.
When implementation, each switch submodule in the data selecting module respectively includes a switching transistor；
N number of switching transistor that the data selecting module includes along the column data line extending direction from top to bottom successively
Setting.
Compared with prior art, data selecting module of the present invention, data selecting method, data selection unit and aobvious
Showing device includes at least two switch submodules, and the first end of at least two switches submodule is all connect with a column data line,
The second end of at least two switches submodule is all connect with a sub-pix, the control terminal difference of each switch submodule
It is connect with a control line.In one mode of operation, under the control of the control line, each submodule that switchs can be connected with timesharing
Connection between the column data line and the sub-pix, it is every to reduce to be charged to the sub-pix by the column data line
The working time of one switch submodule, improve the job stability of data selecting module.In another operation mode, it respectively opens
Sub-module can simultaneously turn on the connection between the column data line and the sub-pix, to be set to AA by the column data line
The sub-pix in area (Active Area, effective display area) charges, to enhance the charging ability of data selecting module.
Description of the drawings
Fig. 1 is the structure chart of the first specific embodiment of data selecting module of the present invention；
Fig. 2 is the circuit diagram of the second specific embodiment of data selecting module of the present invention；
Fig. 3 is the structure chart of the first specific embodiment of data selection unit of the present invention
Fig. 4 is the circuit diagram of the second specific embodiment of data selection unit of the present invention；
When Fig. 5 is the work of the second specific embodiment of data selection unit of the present invention in the first operation mode
Sequence figure；
When Fig. 6 is the work of the second specific embodiment of data selection unit of the present invention in the second operation mode
Sequence figure；
Fig. 7 is the layout of the second specific embodiment of data selection unit of the present invention；
Fig. 8 is the circuit diagram of the display module described in the embodiment of the present invention.
Specific implementation mode
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 describes, 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.
Data selecting module described in the embodiment of the present invention, for providing data voltage, the data selection for sub-pix
Module includes N number of switch submodule；N is the integer more than 1；
The control terminal of n-th switch submodule is connect with the n-th control line；
The first end of N number of switch submodule is all connect with a column data line, the second end of N number of switch submodule
All it is connect with a sub-pix；
Under control of the n-th switch submodule for the n-th control signal on n-th control line, control conducting
Or disconnect this n-th switch submodule first end and this n-th switch submodule second end between connection；
N is the integer less than or equal to N.
An embodiment of the present invention provides a kind of MUX (data selection) module, the data described in the embodiment of the present invention select mould
Block includes at least two switch submodules, and the first end of at least two switches submodule is all connect with a column data line, this is extremely
The second ends of few two switches submodules all connects with a sub-pix, and each control terminal for switching submodule is respectively with one
Control line connects.In one mode of operation, under the control of the control line, the row can be connected in each submodule that switchs with timesharing
Connection between data line and the sub-pix, to be charged to the sub-pix by the column data line, to reduce each open
The working time of sub-module improves the job stability of data selecting module.In another operation mode, each switch
Module can simultaneously turn on the connection between the column data line and the sub-pix, to be set to the areas AA by the column data line
The sub-pix of (Active Area, effective display area) charges, to enhance the charging ability of data selecting module.
Below by N be equal to 2 for illustrate data selecting module of the present invention (here only by N be equal to 2 for illustrate,
In practical operation, N can be equal to the arbitrary integer more than 1).
As shown in Figure 1, the first specific embodiment of data selecting module of the present invention includes first switch submodule
11 and second switch submodule 12；
The control terminal of the first switch submodule 11 is connect with the first control line SW_1, the first switch submodule 11
First end connect with the first column data line Data1, the second end of the first switch submodule 11 and a sub-pix (Fig. 1
In be not shown) connection；
The control terminal of the second switch submodule 12 is connect with the second control line SW_2, the second switch submodule 12
First end connect with the first column data line Data1, the second end of the second switch submodule 12 and a sub-pix (Fig. 1
In be not shown) connection.
Specifically, the n-th switch submodule may include the n-th switching transistor；
The grid of n-th switching transistor is the described n-th control terminal for switching submodule, n-th switching transistor
First extremely it is described n-th switch submodule first end, n-th switching transistor second extremely it is described n-th switch
The second end of module.
As shown in Fig. 2, on the basis of the first specific embodiment of data selecting module shown in Fig. 1, in institute of the present invention
In second specific embodiment of the data selecting module stated,
The first switch submodule 11 includes first switch transistor T1, and the second switch submodule 12 includes second
Switching transistor T2；
The grid of T1 is connect with SW_1, and the source electrode of T1 is connect with Data1, and the drain electrode of T1 is connect with sub-pix Pix；
The grid of T2 is connect with SW_2, and the source electrode of T2 is connect with Data1, and the drain electrode of T2 is connect with sub-pix Pix.
In second specific embodiment of data selecting module shown in Fig. 2, T1 and T2 are n-type transistor, but
When practical operation, T1, T2 can also be replaced by p-type transistor, be not construed as limiting to the type of switching transistor at this.
Second specific embodiment of present invention data selecting module as shown in Figure 2 at work,
In the first operation mode, under the control of the control signal on the control signal and SW_2 on SW_1, T1 and T2
Timesharing is connected；When T1 is connected and T2 is turned off, it is that the sub-pix Pix on display panel charges that Data1, which passes through T1,；When T2 is led
When logical and T1 is turned off, Data1 passes through the sub-pix Pix chargings that T2 is on display panel；It is biased so as to reduce T1
Time, and reduce the time that T2 is biased so that the time that T1 and T2 are biased halves, and substantially reduces switch crystal
The threshold voltage shift of pipe, the stability of lifting switch transistor；
In the second operation mode, under the control of the control signal on the control signal and SW_2 on SW_1, T1 and T2
It simultaneously turns on, Data1 is by the sub-pix Pix chargings that T1 and T2 is on display panel, accordingly even when there is switch crystal
The threshold voltage positively biased or other factors of pipe cause charge rate insufficient, can also intensified charging ability, solve charging problems.
When the second specific embodiment of data selecting module as shown in Figure 2 of the invention works in first operating mode
It,, can also since the time that switching transistor is biased reduces even if switching transistor is oxide thin film transistor when lower
The threshold voltage shift for reducing oxide thin film transistor, increases the stability of oxide thin film transistor, reduces oxide
The reliability risk of thin film transistor (TFT).
Data selecting method described in the embodiment of the present invention, is applied to above-mentioned data selecting module, and a data provide rank
Section includes that the N number of data set gradually provide the period；
The data selecting method includes：
The n-th data that the stage includes are provided in the data, and the period is provided, the n-th control signal on the n-th control line
Control under, n-th switch submodule control conducting this n-th switch submodule first end and this n-th switch submodule second
Connection between end；
N is the integer more than 1, and n is the integer less than or equal to N.
It is each to switch submodule timesharing conducting data line and sub- picture in data selecting method described in this embodiment of the invention
Connection between element promotes the stability of data selecting module to reduce the working time of each switch submodule.
In the specific implementation, the n-th switch submodule includes the n-th switching transistor；
The data selecting method specifically includes：
The period is provided in n-th data, under the control of the n-th control signal on the n-th control line, the n-th switch is brilliant
Body pipe is connected, and all switching transistors in addition to n-th switching transistor that the data selecting module includes are turned off.
In practical operation, the n-th switch submodule may include the n-th switching transistor, each switching transistor timesharing conducting,
To reduce the threshold voltage shift of each switching transistor, increase its stability.
Data selecting method described in the embodiment of the present invention is applied to above-mentioned data selecting module, the data selection
Method includes：The stage is provided in a data,
N number of switch submodule that the data selecting module includes control for controlling signal on corresponding control line respectively
Under system, the connection between the first end and the second end of the switch submodule of the switch submodule is connected in control；
N is the integer more than 1.
In data selecting method described in this embodiment of the invention, stage, data selecting module are provided in same data
Including all switch submodules simultaneously turn on, to enhancing be sub-pix charging ability.
In the specific implementation, the n-th switch submodule includes the n-th switching transistor；N is the integer less than or equal to N；
The data selecting method specifically includes：Stage, the institute that the data selecting module includes are provided in the data
There is switching transistor to be all connected.
In practical operation, the n-th switch submodule may include the n-th switching transistor, and each switching transistor simultaneously turns on,
To enhance the charging ability of data selecting module.
Data selection unit described in the embodiment of the present invention, for providing data voltage for pixel unit, the pixel unit
Including M sub-pix, the data selection unit includes M above-mentioned data selecting modules；M is the integer more than 2；
M data selecting modules correspond to m sub-pixes；
The first ends of all data voltage moulds that the data selection unit includes all switch submodules in the block all with
One column data line connects；
The second end for all switch submodules that m data selecting modules include all is connect with m sub-pixes；
The control terminal for the switch submodule that the data selecting module includes is connected with corresponding control line；
M is the integer less than or equal to M.
Data selection unit described in the embodiment of the present invention includes the data selecting module described in the M embodiment of the present invention,
One data selecting module is corresponding with a sub-pix of the pixel unit, which is used to be the sub-pix
The channel of charging is provided.
According to a kind of specific implementation mode, which may include that red sub-pixel, green sub-pixels and blue are sub-
Pixel；The data selection unit includes the first data selecting module, the second data selecting module and third data selecting module,
Wherein,
First data selecting module is corresponding with the red sub-pixel, the second data selecting module and the green sub-pixels
Corresponding, the third data selecting module is corresponding with the blue subpixels；
The control terminal for the n-th switch submodule that first data selecting module includes is connect with the n-th red control line；
The control terminal for the n-th switch submodule that second data selecting module includes is connect with the n-th green control line；
The control terminal for the n-th switch submodule that the third data selecting module includes is connect with the n-th blue control line；
The second end for all switch submodules that first data selecting module includes all connects with the red sub-pixel
It connects；
The second end for all switch submodules that second data selecting module includes all connects with the green sub-pixels
It connects；
The second end for all switch submodules that the third data selecting module includes all connects with the blue subpixels
It connects；
N is the integer less than or equal to N；N is the integer more than 1.
First data selecting module is provided as the channel of red sub-pixel charging, and the second data selecting module is green
The channel of sub-pix charging, third data selecting module are provided as the channel of blue subpixels charging.
In the specific implementation, a pixel unit can also include four sub-pixes：The sub- picture of red sub-pixel, green
Element, blue subpixels and white sub-pix, the data selection unit includes four data selecting modules at this time, each data choosing
It selects module and corresponds to a sub-pix.
In practical operation, the structure of the pixel unit can not also be limited to two kinds of structures listed above.
It is equal to 2 below with N, pixel unit includes illustrating this for red sub-pixel, green sub-pixels and blue subpixels
The invention data selection unit.
As shown in figure 3, the pixel unit includes red sub-pixel R, green sub-pixels G and blue subpixels B；The present invention
First specific embodiment of the data selection unit includes the first data selecting module, the second data selecting module and third
Data selecting module, wherein
First data selecting module is corresponding with the red sub-pixel R, the second data selecting module and the sub- picture of the green
Plain G is corresponded to, and the third data selecting module is corresponding with the blue subpixels B；
First data selecting module includes first switch submodule 311 and second switch submodule 312；Described second
Data selecting module includes that third switch submodule 321 and the 4th switchs submodule 322；The third data selecting module includes
5th switch submodule 331 and the 6th switchs submodule 332；
The control terminal of the first switch submodule 311 is connect with the first red control line SW_R1；
The control terminal of the second switch submodule 312 is connect with the second red control line SW_R2；
The control terminal of the third switch submodule 321 is connect with the first green control line SW_G1；
The control terminal of the 4th switch submodule 322 is connect with the second green control line SW_G2；
The control terminal of the 5th switch submodule 331 is connect with the first blue control line SW_B1；
The control terminal of the 6th switch submodule 332 is connect with the second blue control line SW_B2；
The first end of the first switch submodule 311 and the first end of the second switch submodule 312 are all with first
The second of column data line Data1 connections, the second end of the first switch submodule 311 and the second switch submodule 312
End is all connect with the red sub-pixel R；
The first end of third switch submodule 321 and the first end of the 4th switch submodule 322 all with it is described
First column data line Data1 connections, the second end of the third switch submodule 321 and the 4th switch submodule 322
Second end is all connect with the green sub-pixels G；
It is described 5th switch submodule 331 first end and it is described 6th switch submodule 332 first end all with it is described
First column data line Data1 connections, the second end of the 5th switch submodule 331 and the 6th switch submodule 332
Second end is all connect with the blue subpixels B.
When the first specific embodiment work of present invention data selection unit as shown in Figure 3,
In the first operation mode, the first data voltage provides the period, the second data voltage provides period, third number
The period is provided according to voltage, the 4th data voltage provides the period, the 5th data voltage provides period and the 6th data voltage
The offer period sets gradually；The period is provided in the first data voltage, SW_R1 controls first switch submodule 311 and it is connected
Connection between first end and its second end, the first switch submodule 311 that Data1 passes through conducting are that red sub-pixel R charges；
The period is provided in the second data voltage, SW_R2 controls second switch submodule 312 and is connected between its first end and its second end
Connection, Data1 is red sub-pixel R chargings by the second switch submodule 312 of conducting；When third data voltage provides
Between section, SW_G1 controls third switch submodule 321 and connection between its first end and its second end is connected, and Data1 passes through conducting
Third switch submodule 321 be green sub-pixels G charging；The period is provided in the 4th data voltage, SW_G2 controls the 4th are opened
The connection between its first end and its second end is connected in sub-module 322, and Data1 switchs submodule 322 by the 4th of conducting
It charges for green sub-pixels G；There is provided the period in the 5th data voltage, the 5th switch submodule 331 of SW_B1 controls be connected its
Connection between one end and its second end, the 5th switch submodule 331 that Data1 passes through conducting is that blue subpixels B charges；
6th data voltage provides the period, and the 6th switch submodule 332 of SW_B2 controls is connected between its first end and its second end
Connection, the 6th switch submodule 332 that Data1 passes through conducting is that blue subpixels B charges；
In the second operation mode, the first data voltage provides the period, the second data voltage provides period and third
The data voltage offer period sets gradually,
The period is provided in the first data voltage, SW_R1 controls first switch submodule 311 and its first end and Qi is connected
Connection between two ends, SW_R2 control the connection between 312 its first end of conducting of second switch submodule and its second end,
Data1 is red sub-pixel R chargings by the first switch submodule 311 and second switch submodule 312 that simultaneously turn on；
Two data voltages provide the period, and SW_G1 controls the company between third switch submodule 321 its first end of conducting and its second end
It connects, the connection between its first end and its second end is connected in the 4th switch submodule 322 of SW_G2 controls, and Data1 by leading simultaneously
It is green sub-pixels G chargings that logical third switch submodule 321 and the 4th, which switchs submodule 322,；It is provided in third data voltage
Period, the 5th switch submodule 331 of SW_B1 controls are connected the connection between its first end and its second end, SW_B2 controls the
The connection between its first end and its second end is connected in six switch submodules 332, and Data1 is sub by the 5th switch simultaneously turned on
It is blue subpixels B chargings that module 331 and the 6th, which switchs submodule 332,.
As shown in figure 4, on the basis of the first specific embodiment of data selection unit shown in Fig. 3, in institute of the present invention
In second specific embodiment of the data selection unit stated；
The first switch submodule includes the first red switch transistor TR1, and the second switch submodule includes the
Two red switch transistor TR2, the third switch submodule include the first green switching transistor TG1, the 4th switch
Submodule includes the second green switching transistor TG2, and the 5th switch submodule includes the first blue switch transistor TB1,
The 6th switch submodule includes the second blue switch transistor TB2；
The grid of TR1 is connect with SW_R1, and the source electrode of TR1 is connect with Data1, and the drain electrode of TR1 is connect with red sub-pixel R；
The grid of TR2 is connect with SW_R2, and the source electrode of TR2 is connect with Data1, and the drain electrode of TR2 is connect with red sub-pixel R；
The grid of TG1 is connect with SW_G1, and the source electrode of TG1 is connect with Data1, and the drain electrode of TG1 is connect with green sub-pixels G；
The grid of TG2 is connect with SW_G2, and the source electrode of TG2 is connect with Data1, and the drain electrode of TG2 is connect with green sub-pixels G；
The grid of TB1 is connect with SW_B1, and the source electrode of TB1 is connect with Data1, and the drain electrode of TB1 is connect with blue subpixels B；
The grid of TB2 is connect with SW_B2, and the source electrode of TB2 is connect with Data1, and the drain electrode of TB2 is connect with blue subpixels B.
In second specific embodiment of data selection unit of the present invention shown in Fig. 4, with TR1, TR2, TG1,
TG2, TB1 and TB2 for n-type transistor to illustrate, but in practical operation, transistor as above can also be replaced
For p-type transistor, type of transistor is not construed as limiting at this.
As shown in figure 5, the second specific embodiment of data selection unit of the present invention is at work,
In the first operation mode, the first data voltage provides period S1, the second data voltage provides period S2, the
Three data voltages provide period S3, the 4th data voltage provides period S4, the 5th data voltage provides period S5 and the
Six data voltages offer time S6 section sets gradually；
The first data voltage provide period S1, SW_R1 export high level, SW_R2, SW_G1, SW_G2, SW_B1 and
SW_B2 exports low level, and TR1 conductings, TR2, TG1, TG2, TB1 and TB2 are turned off；
The second data voltage provide period S2, SW_R2 export high level, SW_R1, SW_G1, SW_G2, SW_B1 and
SW_B2 exports low level, and TR2 conductings, TR1, TG1, TG2, TB1 and TB2 are turned off；
Third data voltage provide period S3, SW_G1 export high level, SW_R1, SW_R2, SW_G2, SW_B1 and
SW_B2 exports low level, and TG1 conductings, TR1, TR2, TG2, TB1 and TB2 are turned off；
The 4th data voltage provide period S4, SW_G2 export high level, SW_R1, SW_R2, SW_G1, SW_B1 and
SW_B2 exports low level, and TR2 conductings, TR1, TR2, TG1, TB1 and TB2 are turned off；
The 5th data voltage provide period S5, SW_B1 export high level, SW_R1, SW_R2, SW_G1, SW_G2 and
SW_B2 exports low level, and TB1 conductings, TR1, TR2, TG1, TG2 and TB2 are turned off；
The 6th data voltage provide period S6, SW_B2 export high level, SW_R1, SW_R2, SW_G1, SW_G2 and
SW_B1 exports low level, and TB2 conductings, TR1, TR2, TG1, TG2 and TB1 are turned off；
From the foregoing, it will be observed that the time that each switching transistor is biased is the 1/6 of driving time T, relative to traditional number
According to the structure of selecting unit, the second specific embodiment of data selection unit of the present invention can make each switching transistor
The time being biased halves, and substantially reduces the threshold voltage shift of switching transistor, increases the stabilization of switching transistor
Property.
As shown in fig. 6, the second specific embodiment of data selection unit of the present invention is at work,
In the second operation mode, the first data voltage provide period S1, the second data voltage provide period S2 and
Third data voltage offer period S3 section sets gradually；
Period S1, SW_R1 and SW_R2, which are provided, in the first data voltage all exports high level, SW_G1, SW_G2, SW_B1
With SW_B2 low level is all exported, TR1 and TR2 are connected, and TG1, TG2, TB1 and TB2 are turned off, and Data1 is by simultaneously turning on
TR1 and TR2 charges for R, intensified charging ability；
Period S2, SW_G1 and SW_G2, which are provided, in the second data voltage all exports high level, SW_R1, SW_R2, SW_B1
With SW_B2 low level is all exported, TG1 and TG2 are connected, and TR1, TR2, TB1 and TB2 are turned off, and Data1 is by simultaneously turning on
TG1 and TG2 charges for G, intensified charging ability；
Period S3, SW_B1 and SW_B2, which are provided, in third data voltage all exports high level, SW_R1, SW_R2, SW_G1
With SW_G2 low level is all exported, TB1 and TB2 are connected, and TR1, TR2, TG1 and TG2 are turned off, and Data1 is by simultaneously turning on
TB1 and TB2 charges for B, intensified charging ability.
In data selection unit described in the embodiment of the present invention, N number of switch that a data selecting module includes
Transistor is set gradually from top to bottom along the column data line extending direction, can increase the ditch road width W of thin film transistor (TFT) in this way,
When leading to charge rate deficiency if there is the threshold voltage positively biased of switching transistor or due to other factors in this way, it can pass through
The layout (layout) for changing switching transistor enhances the charging ability of data selecting module, solves charging problems.
As shown in fig. 7, when making the second specific embodiment of data selection unit of the present invention, the edges TR1 and TR2
The extending direction for Data1 is set gradually from the top down, and TG1 and TG2 are set successively from the top down along the extending direction of Data1
It sets, TB1 and TB2 are set gradually from the top down along the extending direction of Data1, in this way can be by the ditch road width W of thin film transistor (TFT)
Increase to twice of the prior art, promotes charging ability.
Display module described in the embodiment of the present invention, including display base plate, the display module further include be set to it is described
Above-mentioned data selecting module on display base plate；
The data selecting module is connect with a column data line, which is also disposed on the display base plate.
Specifically, each switch submodule in the data selecting module respectively includes a switching transistor；
N number of switching transistor that the data selecting module includes along the column data line extending direction from top to bottom successively
Setting.
As shown in figure 8, display module described in the embodiment of the present invention includes the first pixel unit, the second pixel unit, the
One data selection unit, the second data selection unit, the first column data line Data1 and the second column data line Data2；
First pixel unit includes the first red sub-pixel R1, the first green sub-pixels G1 and the first blue subpixels
B1；Second pixel unit includes the second red sub-pixel R2, the second green sub-pixels G2 and the second blue subpixels B2；
First data selection unit includes the first data selecting module, the second data selecting module and the choosing of third data
Select module；
Second data selection unit includes the 4th data selecting module, the 5th data selecting module and the choosing of the 6th data
Select module；
First data selecting module includes the first red switch transistor TR1 and the second red switch transistor TR2；
Second data selecting module includes the green switching transistor TG2 of the first green switching transistor TG1 and second；The third
Data selecting module 33 includes the first blue switch transistor TB1 and the second blue switch transistor TB2；
4th data selecting module includes third red switch transistor TR3 and the 4th red switch transistor TR4；
5th data selecting module includes the green switching transistor TG4 of third green switching transistor TG3 and the 4th；Described 6th
Data selecting module includes third blue switch transistor TB3 and the 4th blue switch transistor TB4；
The grid of TR1 is connect with SW_R1, and the source electrode of TR1 is connect with Data1, the drain electrode of TR1 and the first red sub-pixel R1
Connection；
The grid of TR2 is connect with SW_R2, and the source electrode of TR2 is connect with Data1, the drain electrode of TR2 and the first red sub-pixel R1
Connection；
The grid of TG1 is connect with SW_G1, and the source electrode of TG1 is connect with Data1, the drain electrode of TG1 and the first green sub-pixels G1
Connection；
The grid of TG2 is connect with SW_G2, and the source electrode of TG2 is connect with Data1, the drain electrode of TG2 and the first green sub-pixels G1
Connection；
The grid of TB1 is connect with SW_B1, and the source electrode of TB1 is connect with Data1, the drain electrode of TB1 and the first blue subpixels B1
Connection；
The grid of TB2 is connect with SW_B2, and the source electrode of TB2 is connect with Data1, the drain electrode of TB2 and the first blue subpixels B1
Connection；
The grid of TR3 is connect with SW_R1, and the source electrode of TR3 is connect with Data2, the drain electrode of TR3 and the second red sub-pixel R2
Connection；
The grid of TR4 is connect with SW_R2, and the source electrode of TR4 is connect with Data2, the drain electrode of TR4 and the second red sub-pixel R2
Connection；
The grid of TG3 is connect with SW_G1, and the source electrode of TG3 is connect with Data2, the drain electrode of TG3 and the second green sub-pixels G2
Connection；
The grid of TG4 is connect with SW_G2, and the source electrode of TG4 is connect with Data2, the drain electrode of TG4 and the second green sub-pixels G2
Connection；
The grid of TB3 is connect with SW_B1, and the source electrode of TB3 is connect with Data2, the drain electrode of TB3 and the second blue subpixels B2
Connection；
The grid of TB4 is connect with SW_B2, and the source electrode of TB4 is connect with Data2, the drain electrode of TB4 and the second blue subpixels B2
Connection.
In the embodiment of display module shown in Fig. 8, all transistors are all n-type transistor, but in practical behaviour
When making, transistor as above may alternatively be p-type transistor, is not construed as limiting to the type of transistor at this.
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, it can also make several improvements and retouch, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of data selecting module, for providing data voltage for sub-pix, which is characterized in that the data selecting module packet
Include N number of switch submodule；N is the integer more than 1；
The control terminal of n-th switch submodule is connect with the n-th control line；
It is described it is N number of switch submodule first end all connect with a column data line, it is described it is N number of switch submodule second end all with
One sub-pix connection；
Under control of the n-th switch submodule for the n-th control signal on n-th control line, on-off is led in control
Open the connection between the first end of the n-th switch submodule and the second end of the n-th switch submodule；
N is the integer less than or equal to N.
2. data selecting module as described in claim 1, which is characterized in that the n-th switch submodule includes that the n-th switch is brilliant
Body pipe；
The grid of n-th switching transistor is the described n-th control terminal for switching submodule, the of n-th switching transistor
The first end of the one extremely described n-th switch submodule, the second extremely described n-th switch submodule of n-th switching transistor
Second end.
3. a kind of data selecting method is applied to data selecting module as claimed in claim 1 or 2, which is characterized in that a number
Include that the N number of data set gradually provide the period according to the offer stage；
The data selecting method includes：
The n-th data that the stage includes are provided in the data, and the period is provided, the control of the n-th control signal on the n-th control line
Under system, n-th switch submodule control conducting this n-th switch submodule first end and this n-th switch submodule second end it
Between connection；
N is the integer more than 1, and n is the integer less than or equal to N.
4. data selecting method as claimed in claim 3, which is characterized in that the n-th switch submodule includes that the n-th switch is brilliant
Body pipe；
The data selecting method specifically includes：
The period is provided in n-th data, under the control of the n-th control signal on the n-th control line, the n-th switching transistor
Conducting, all switching transistors in addition to n-th switching transistor that the data selecting module includes are turned off.
5. a kind of data selecting method is applied to data selecting module as claimed in claim 1 or 2, which is characterized in that described
Data selecting method includes：The stage is provided in a data,
N number of switch submodule that the data selecting module includes control for controlling signal on corresponding control line respectively
Under, the connection between the first end and the second end of the switch submodule of the switch submodule is connected in control；
N is the integer more than 1.
6. data selecting method as claimed in claim 5, which is characterized in that the n-th switch submodule includes that the n-th switch is brilliant
Body pipe；N is the integer less than or equal to N；
The data selecting method specifically includes：The stage is provided in the data, what the data selecting module included all opens
Transistor is closed all to be connected.
7. a kind of data selection unit, for providing data voltage for pixel unit, which includes M sub-pix,
It is characterized in that, the data selection unit includes M data selecting modules as claimed in claim 1 or 2；M is whole more than 2
Number；
M data selecting modules correspond to m sub-pixes；
The first end for all data voltage moulds all switch submodules in the block that the data selection unit includes all is arranged with one
Data line connects；
The second end for all switch submodules that m data selecting modules include all is connect with m sub-pixes；
The control terminal for the switch submodule that the data selecting module includes is connected with corresponding control line；
M is the integer less than or equal to M.
8. data selection unit as claimed in claim 7, which is characterized in that the pixel unit includes red sub-pixel, green
Sub-pix and blue subpixels；The data selection unit includes the first data selecting module, the second data selecting module and the
Three data selecting modules, wherein
First data selecting module is corresponding with the red sub-pixel, the second data selecting module and the green sub-pixels pair
It answers, the third data selecting module is corresponding with the blue subpixels；
The control terminal for the n-th switch submodule that first data selecting module includes is connect with the n-th red control line；
The control terminal for the n-th switch submodule that second data selecting module includes is connect with the n-th green control line；
The control terminal for the n-th switch submodule that the third data selecting module includes is connect with the n-th blue control line；
The second end for all switch submodules that first data selecting module includes all is connect with the red sub-pixel；
The second end for all switch submodules that second data selecting module includes all is connect with the green sub-pixels；
The second end for all switch submodules that the third data selecting module includes all is connect with the blue subpixels；
N is the integer less than or equal to N；N is the integer more than 1.
9. a kind of display module, including display base plate, which is characterized in that the display module further includes being set to the display base
Data selecting module as claimed in claim 1 or 2 on plate；
The data selecting module is connect with a column data line, which is also disposed on the display base plate.
10. display module as claimed in claim 9, which is characterized in that each switch submodule in the data selecting module
Block respectively includes a switching transistor；
N number of switching transistor that the data selecting module includes is set successively from top to bottom along the column data line extending direction
It sets.
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Application publication date: 20180824 |