CN106057166A - Data driver and liquid crystal display device - Google Patents
Data driver and liquid crystal display device Download PDFInfo
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- CN106057166A CN106057166A CN201610675907.7A CN201610675907A CN106057166A CN 106057166 A CN106057166 A CN 106057166A CN 201610675907 A CN201610675907 A CN 201610675907A CN 106057166 A CN106057166 A CN 106057166A
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- limit
- operation amplifier
- subelement
- midpoint
- data driver
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—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
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3685—Details of drivers for data electrodes
- G09G3/3688—Details of drivers for data electrodes suitable for active matrices only
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
The invention provides a data driver and a liquid crystal display device. The data driver comprises a first side, and the first side is provided with a plurality of output pins, wherein each output pin is electrically connected with a transmission wire. The resistance of the transmission wire gradually increases from the central point of the first side to two ends of the first side. The data driver also comprises an operation amplification unit, and the operation amplification unit comprises a plurality of operation amplification subunits, wherein each operation amplification subunit is corresponding to one output pin. The plurality of operation amplification subunits are arranged along the first side, and the operation amplification subunits are used for receiving analog data signals, amplifying the analog data signals and outputting the amplified analog data signals through the output pins. Each operation amplification subunit comprises an operational amplifier, wherein the size of the operational amplifier in each operation amplification subunit gradually increases from the central point of the first side to two ends of the first side, or the number of the operational amplifiers in each operation amplification subunit gradually increase from the central point of the first side to two ends of the first side.
Description
Technical field
The present invention relates to field of liquid crystal display, particularly relate to a kind of data driver and liquid crystal indicator.
Background technology
Liquid crystal indicator includes the data driver that display panels and neighbouring described display panels are arranged
(Data Driver), data driver is sometimes referred to as the integrated chip in source (Source IC), and data driver is for being
Display panels provides analog data signal.Generally, data driver includes being arranged on same multiple output pins, often
Individual output pin is electrically connected with display panels by transfer wire.Refer to Fig. 1, each output pin A and liquid crystal display
Transfer wire B length between panel is different.Generally, the biography between pin and the display panels at all pin centers
The length of transporting line is the shortest, and for convenience of describing, the pin being positioned at all pin centers is referred to as the first pin a, further away from described the
The length of the transfer wire between pin and the display panels of one pin a is the longest.Generally, each output pin and liquid crystal
Show that the width of transfer wire between panel is identical, therefore, the transmission between described first pin a and described display panels
The resistance of wire is minimum, further away from the electricity of the transfer wire between pin and the described display panels of described first pin a
Hinder the biggest.When data driver is from the analog data signal that the output of the plurality of pin is identical, through pin and liquid crystal display
When between panel, the conduction of the transfer wire of different resistances arrives display panels, the attenuation degree of analog data signal
Inconsistent.Through described first pin a and connect between described first pin a and display panels transfer wire output
The attenuation degree of analog data signal is minimum, and the analog data signal further away from the pin output of described first pin a arrives
Attenuation degree during display panels is the biggest.Therefore, when described display panels carries out showing image or video, lead
Homogeneity when causing display panels display picture or video is poor.
Summary of the invention
The present invention provides a kind of data driver, and described data driver includes the first limit, and described first limit arranges multiple
Output pin, each output pin electrically connects with transfer wire, the resistance of described transfer wire from the midpoint on described first limit to
The two ends on described first limit are gradually increased, and described data driver includes that operation amplifier unit, described computing are put unit and included many
Individual operation amplifier subelement, the corresponding output pin of each operation amplifier subelement, the plurality of operation amplifier subelement edge
Described first limit arrangement, described operation amplifier subelement is used for receiving analog data signal, and is put by described analog data signal
Through being exported by described output pin after great, each operation amplifier subelement includes operational amplifier, each operation amplifier subelement
In the size of operational amplifier be gradually increased to the two ends on described first limit from the midpoint on described first limit；Or, Mei Geyun
The number calculating the operational amplifier amplified in subelement is gradually increased to the two ends on described first limit from the midpoint on described first limit.
Wherein, when the size of the operational amplifier in each operation amplifier subelement from the midpoint on described first limit to described
When the two ends on the first limit are gradually increased, the size of the operational amplifier in each operation amplifier subelement is in described first limit
The point two linear increases to described first limit.
Wherein, when the size of the operational amplifier in each operation amplifier subelement from the midpoint on described first limit to described
When the two ends on the first limit are gradually increased, the straight line at the midpoint to be perpendicular to described first limit and described first limit of mistake will for demarcation line
Operation amplifier subelement is divided into Part I and Part II, in described Part I and described Part II, respectively with neighbour
First operation amplifier subelement at the midpoint on the most described first limit starts, and defines every N number of adjacent operation amplifier subelement group
Become an operation amplifier subelement group, and different operation amplifier subelement groups comprises different operation amplifier subelements；For
For same operation amplifier subelement group, the operational amplifier in each operation amplifier subelement equal sized；For not
For same operation amplifier subelement group, the different operation amplifiers in the operation amplifier subelement in operation amplifier subelement group
The size of device is from the midpoint on described first limit to the two linear increases on described first limit, and wherein, N is positive integer.
Wherein, the corresponding operational amplifier in the midpoint on described first limit；Or the midpoint on described first limit does not has correspondence
Operational amplifier.
Wherein, the size of described operational amplifier includes the area of described operational amplifier.
Wherein, when the number of the operational amplifier in each operation amplifier subelement from the midpoint on described first limit to described
When the two ends on the first limit are gradually increased, the number of the operational amplifier in each operation amplifier subelement is in described first limit
Point is linearly increasing to the two ends on described first limit.
Wherein, when the number of the operational amplifier in each operation amplifier subelement from the midpoint on described first limit to described
When the two ends on the first limit are gradually increased, the straight line with the most described first limit and the midpoint crossing described first limit will fortune for demarcation line
Calculate amplification subelement and be divided into Part I and Part II, in described Part I and described Part II, respectively with neighbouring
First operation amplifier subelement at the midpoint on described first limit starts, and defines every N number of adjacent operation amplifier subelement composition
One operation amplifier subelement group, and different operation amplifier subelement groups comprises different operation amplifier subelements；For same
For one operation amplifier subelement group, the number of the operational amplifier in each operation amplifier subelement is equal；For difference
Operation amplifier subelement group for, the different operational amplifiers in the operation amplifier subelement in operation amplifier subelement group
Number linear increase to the two of described first limit from the midpoint on described first limit, wherein, N is positive integer.
Wherein, the corresponding operational amplifier in the midpoint on described first limit；Or the midpoint on described first limit does not has correspondence
Operational amplifier.
Wherein, when the size of the operational amplifier in each operation amplifier subelement from the midpoint on described first limit to described
When the two ends on the first limit are gradually increased, the size of the operational amplifier in each operation amplifier subelement is in described first limit
Point increases to two terminal type non-linears on described first limit, so that through each operation amplifier subelement, described operation amplifier subelement
Corresponding output pin and consistent with the attenuation degree of the analog data signal after the transfer wire that described pin connects；Or,
When the number of the operational amplifier in each operation amplifier subelement from the midpoint on described first limit to the two ends on described first limit
When being gradually increased, the number of the operational amplifier in each operation amplifier subelement from the midpoint on described first limit to described first
Two terminal type non-linears on limit increase, so that drawing through each operation amplifier subelement, output that described operation amplifier subelement is corresponding
Foot and consistent with the attenuation degree of the analog data signal after the transfer wire that described output pin connects.
The liquid crystal indicator of the present invention at the resistance of described transfer wire from the midpoint on described first limit to described first
During while be gradually increased, the size of operational amplifier in each operation amplifier subelement is set from the midpoint on described first limit to institute
The two ends stating the first limit are gradually increased；Or, the number of the operational amplifier in each operation amplifier subelement is from described first
The technological means that the midpoint on limit is gradually increased to the two ends on described first limit, the output reducing the midpoint further away from the first limit is drawn
The analog data signal of foot output arrives the biggest skill of attenuation degree of display panels through corresponding transfer wire
Art defect.Thus the homogeneity of picture when improve described liquid crystal indicator display image or video.
Present invention also offers a kind of liquid crystal indicator, described liquid crystal indicator includes aforementioned any one embodiment
Described data driver.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to
Other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is the structural representation of liquid crystal indicator in prior art.
Fig. 2 is the structural representation of the liquid crystal indicator of the present invention the first better embodiment.
Fig. 3 is the structural representation of the liquid crystal indicator of the present invention the second better embodiment.
Fig. 4 is the structural representation of the liquid crystal indicator of the present invention the 3rd better embodiment.
Fig. 5 is the structural representation of the liquid crystal indicator of the present invention the 4th better embodiment.
Fig. 6 is the structural representation of the liquid crystal indicator of the present invention the 5th better embodiment.
Fig. 7 is the structural representation of the liquid crystal indicator of the present invention the 6th better embodiment.
Fig. 8 is the output pin at the midpoint on neighbouring first limit in liquid crystal indicator of the present invention and away from the midpoint on the first limit
Waveform diagram when reaching display panels of the analog data signal of output pin output.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
Refer to the structural representation of the liquid crystal indicator that Fig. 2 and Fig. 3, Fig. 2 are the present invention the first better embodiment；
Fig. 3 is the structural representation of the liquid crystal indicator of the present invention the second better embodiment.Described liquid crystal indicator 10 includes
Data driver (Date Driver) 100 and display panels 200.Described liquid crystal indicator 10 can be but not only limit
In mobile phone, panel computer, notebook computer, palm PC, mobile internet device (MID, mobile internet
Device), wearable device etc..Described data driver 100 is arranged adjacent to a limit of described display panels 200, institute
State data driver 100 for providing analog data signal for described display panels 200.In the present embodiment, described
Corresponding described 200 1 limits of display panels of data driver 100 centrally disposed.In other words, described data driver
The center line of 100 overlaps with the center line of described display panels 200.
Described data driver 100 includes that the first limit 100a, described first limit 100a arrange multiple output pin 110.Often
Individual output pin 110 electrically connects with transfer wire 120.Described transfer wire 120 is used for electrically connecting the described data driver of connection
100 and described display panels 200, and the signal transmission produced by described data driver 100 is to described LCD
Plate 200.The resistance of described transfer wire 120 from the midpoint 101a of described first limit 100a to the two ends of described first limit 100a by
Cumulative add.
In one embodiment, identical with the cross-sectional area of the transfer wire 120 of each output pin 110 electrical connection, electricity
Resistance rate is identical, and difference is that the length of transfer wire is different.Owing to the resistance of described transfer wire 120 is from described first limit
The midpoint 101a of 100a is gradually increased to the two ends of described first limit 100a, and therefore, the length of described transfer wire 120 is from described
The midpoint 101a of the first limit 100a is gradually increased to the two ends of described first limit 100a.
Described data driver 100 includes that operation amplifier unit 130, described operation amplifier unit 130 include multiple computing
Amplify subelement 131.The corresponding output pin 110 of each operation amplifier subelement 131, the plurality of operation amplifier subelement
131 along described first limit 100a arrangement, and described operation amplifier subelement 131 is used for receiving analog data signal, and by described mould
Intend after data signal is amplified through being exported by described output pin 110.Each operation amplifier subelement 131 includes operational amplifier
1311.The size of the operational amplifier 1311 in each operation amplifier subelement 131 is from the midpoint 101a of described first limit 100a
It is gradually increased to the two ends of described first limit 100a；Or, the operational amplifier 1311 in each operation amplifier subelement 131
Number is gradually increased to the two ends of described first limit 100a from the midpoint 101a of described first limit 100a.
In one embodiment, as in figure 2 it is shown, when operational amplifier 1311 in each operation amplifier subelement 131
Size is when the midpoint 101a of described first limit 100a is gradually increased to the two ends of described first limit 100a, and each operation amplifier is sub
The size of the operational amplifier 1311 in unit 131 from the midpoint of described first limit 100a to two end lines of described first limit 100a
Property increase.
In one embodiment, as it is shown on figure 3, when operational amplifier 1311 in each operation amplifier subelement 131
Number is when the midpoint 101a of described first limit 100a is gradually increased to the two ends of described first limit 100a, and each operation amplifier is sub
The number of the operational amplifier 1311 in unit 131 from the midpoint 101a of described first limit 100a to the two of described first limit 100a
Linear increase.
In one embodiment, as shown in Figure 4, when the operational amplifier 1311 in each operation amplifier subelement 131
Size is when the midpoint 101a of described first limit 100a is gradually increased to the two ends of described first limit 100a, to be perpendicular to described
The straight line of 100a and the midpoint 101a of described first limit 100a excessively is that whole operation amplifier subelements 131 are divided into by demarcation line on one side
Part I 150a and Part II 150b, in described Part I 150a and described Part II 150b, respectively with neighbouring
First operation amplifier subelement 131 of the midpoint 101a of described first limit 100a starts, and defines every N number of adjacent operation amplifier
Subelement 131 form an operation amplifier subelement group 160, and different operation amplifier subelement groups 160 comprise different
Operation amplifier subelement 131.In other words, different operation amplifier subelement groups 160 comprises different operation amplifier lists
The meaning of unit 131 is that each operation amplifier subelement 131 is pertaining only to an operation amplifier subelement group 160.For same fortune
Calculate and amplify for subelement group 160, the operational amplifier 1311 in each operation amplifier subelement 131 equal sized.For
For different operation amplifier subelement groups 160, the different operation amplifier subelements 131 in operation amplifier subelement group 160
In the size of operational amplifier 1311 linear to the two of described first limit 100a from the midpoint 101a of described first limit 100a
Increase.Wherein, N is positive integer.In the diagram, N is 2.It is to be appreciated that in other embodiments, N just can also take other
Integer.
In the liquid crystal indicator 10 shown in Fig. 4, the midpoint 101a of described first limit 100a does not has corresponding operation amplifier
Device 1311.
In another embodiment, referring to Fig. 5, Fig. 5 and Fig. 4 essentially identical, its difference is, in Figure 5, and described
The corresponding operational amplifier 1311 of the midpoint 101a of 100a on one side.
In one embodiment, as shown in Figure 6, when the operational amplifier 1311 in each operation amplifier subelement 131
When number is gradually increased to the two ends of described first limit 100a from the midpoint of described first limit 100a, with the most described first limit
The straight line at 100a and the excessively midpoint of described first limit 100a is that whole operation amplifier subelements 131 are divided into Part I by demarcation line
150a and Part II 150b, in described Part I 150a and described Part II 150b, respectively with neighbouring described first
First operation amplifier subelement 131 of the midpoint 101a of limit 100a starts, and defines every N number of adjacent operation amplifier subelement
131 composition one operation amplifier subelement group 160, and different operation amplifier subelement groups 160 comprise different computings put
Big subelement 131.For same operation amplifier subelement group 160, the computing in each operation amplifier subelement 131 is put
The number of big device is equal.For different operation amplifier subelement groups 160, in different operation amplifier subelement groups 160
Operation amplifier subelement 131 in the number of operational amplifier 1311 from the midpoint of described first limit 100a to described first limit
The two of 100a linear increase.Wherein, N is positive integer.In figure 6, N is 2.It is to be appreciated that in other embodiments, N
Other positive integers can also be taken.
In the liquid crystal indicator 10 shown in Fig. 6, the midpoint 101a of described first limit 100a does not has corresponding operation amplifier
Device 1311.
In another embodiment, referring to Fig. 7, Fig. 7 and Fig. 6 essentially identical, its difference is, in the figure 7, and described
The corresponding operational amplifier 1311 of the midpoint 101a of 100a on one side.
In other embodiments, when the size of the operational amplifier 1311 in each operation amplifier subelement 131 is from institute
State the midpoint 101a of the first limit 100a when being gradually increased to the two ends of described first limit 100a, each operation amplifier subelement 131
In the size of operational amplifier 1311 increase to two terminal type non-linears of described first limit 100a from the midpoint of described first limit 100a
Greatly, so that through each operation amplifier subelement 131, the output pin 110 of described operation amplifier subelement 131 correspondence and described
The attenuation degree of the analog data signal after the transfer wire 120 that output pin 110 connects is consistent.
Or in other embodiments, when the number of the operational amplifier 1311 in each operation amplifier subelement 131
When the midpoint 101a of described first limit 100a is gradually increased to the two ends of described first limit 100a, each operation amplifier subelement
The number of the operational amplifier 1311 in 131 is non-to the two ends of described first limit 100a from the midpoint 101a of described first limit 100a
Linearly increasing so that through output pin 110 corresponding to each operation amplifier subelement 131, described operation amplifier subelement and
Consistent with the attenuation degree of the analog data signal after the transfer wire 120 that described output pin 110 connects.
It is to be appreciated that above the size of operational amplifier 1311 described in each embodiment includes described operation amplifier
The area of device 1311.
Refer to output pin that Fig. 8, Fig. 8 are the midpoint on neighbouring first limit in liquid crystal indicator of the present invention and away from the
The analog data signal of the output pin output at midpoint on one side reaches waveform diagram during display panels.Wherein,
Wave_a represents that the analog data signal of output pin 110 output of the midpoint 101a of neighbouring described first limit 100a is through its institute
Corresponding transfer wire 120 reaches waveform diagram during display panels 200, and wave_b represents away from described first limit
The analog data signal of output pin 110 output of the midpoint 101a of 100a reaches liquid through its corresponding transfer wire 120
Waveform diagram during LCD panel 200.It may be seen that two waveforms are basically identical.Therefore, the liquid crystal display of the present invention
Device 10 gradually increases to described first limit 100a from the midpoint 101a of described first limit 100a at the resistance of described transfer wire 120
Added-time, the size of operational amplifier 1311 in each operation amplifier subelement 131 is set from the midpoint of described first limit 100a
101a is gradually increased to the two ends of described first limit 100a；Or, the operational amplifier in each operation amplifier subelement 131
The technological means that the number of 1311 is gradually increased to the two ends of described first limit 100a from the midpoint 101a of described first limit 100a,
The analog data signal of output pin 110 output reducing the midpoint 101a further away from the first limit 100a transmits through corresponding
Attenuation degree the biggest technological deficiency during display panels 200 is arrived during wire 120.Thus improve described liquid crystal display
The homogeneity of picture when device 10 shows image or video.
Present invention also offers a kind of data driver 100, described data driver 100 can be the liquid crystal of foregoing description
In display device 10, the data driver 100 of any one embodiment, does not repeats them here.
Above disclosed it is only one preferred embodiment of the present invention, certainly can not limit the power of the present invention with this
Profit scope, one of ordinary skill in the art will appreciate that all or part of flow process realizing above-described embodiment, and weighs according to the present invention
Profit requires the equivalent variations made, and still falls within the scope that invention is contained.
Claims (10)
1. a data driver, it is characterised in that described data driver includes that the first limit, described first limit arrange multiple defeated
Going out pin, each output pin electrically connects with transfer wire, the resistance of described transfer wire from the midpoint on described first limit to institute
The two ends stating the first limit are gradually increased, and described data driver includes that operation amplifier unit, described computing are put unit and included multiple
Operation amplifier subelement, the corresponding output pin of each operation amplifier subelement, the plurality of operation amplifier subelement is along institute
Stating the first limit arrangement, described operation amplifier subelement is used for receiving analog data signal, and is amplified by described analog data signal
Exporting by by described output pin, each operation amplifier subelement includes operational amplifier, in each operation amplifier subelement
The size of operational amplifier be gradually increased to the two ends on described first limit from the midpoint on described first limit；Or, each computing
The number amplifying the operational amplifier in subelement is gradually increased to the two ends on described first limit from the midpoint on described first limit.
2. data driver as claimed in claim 1, it is characterised in that the operation amplifier in each operation amplifier subelement
When the size of device is gradually increased to the two ends on described first limit from the midpoint on described first limit, in each operation amplifier subelement
The size of operational amplifier from the midpoint on described first limit to the two linear increases on described first limit.
3. data driver as claimed in claim 1, it is characterised in that the operation amplifier in each operation amplifier subelement
When the size of device is gradually increased to the two ends on described first limit from the midpoint on described first limit, to be perpendicular to described first limit and mistake
The straight line at the midpoint on described first limit is that operation amplifier subelement is divided into Part I and Part II by demarcation line, described
In a part of and described Part II, start with first operation amplifier subelement at the midpoint on neighbouring described first limit respectively,
Define every N number of adjacent operation amplifier subelement one operation amplifier subelement group of composition, and different operation amplifier subelements
Group comprises different operation amplifier subelements；For same operation amplifier subelement group, each operation amplifier subelement
In operational amplifier equal sized；For different operation amplifier subelement groups, different operation amplifier subelements
The size of the operational amplifier in operation amplifier subelement in group from the midpoint on described first limit to the two ends on described first limit
Linear increase, wherein, N is positive integer.
4. data driver as claimed in claim 3, it is characterised in that the corresponding operation amplifier in the midpoint on described first limit
Device；Or the midpoint on described first limit does not has corresponding operational amplifier.
5. data driver as claimed in claim 1, it is characterised in that the size of described operational amplifier includes described computing
The area of amplifier.
6. data driver as claimed in claim 1, it is characterised in that the operation amplifier in each operation amplifier subelement
When the number of device is gradually increased to the two ends on described first limit from the midpoint on described first limit, in each operation amplifier subelement
The number of operational amplifier is linearly increasing to the two ends on described first limit from the midpoint on described first limit.
7. data driver as claimed in claim 1, it is characterised in that the operation amplifier in each operation amplifier subelement
When the number of device is gradually increased to the two ends on described first limit from the midpoint on described first limit, with the most described first limit and mistake institute
The straight line at the midpoint stating the first limit is that operation amplifier subelement is divided into Part I and Part II by demarcation line, described first
In part and described Part II, start with first operation amplifier subelement at the midpoint on neighbouring described first limit respectively, fixed
Every N number of adjacent operation amplifier subelement one the operation amplifier subelement group of composition of justice, and different operation amplifier subelement groups
Comprise different operation amplifier subelements；For same operation amplifier subelement group, in each operation amplifier subelement
The number of operational amplifier equal；For different operation amplifier subelement groups, different operation amplifier subelement groups
In operation amplifier subelement in the number of operational amplifier from two end lines from the midpoint on described first limit to described first limit
Property increases, and wherein, N is positive integer.
8. data driver as claimed in claim 7, it is characterised in that the corresponding operation amplifier in the midpoint on described first limit
Device；Or the midpoint on described first limit does not has corresponding operational amplifier.
9. data driver as claimed in claim 1, it is characterised in that the operation amplifier in each operation amplifier subelement
When the size of device is gradually increased to the two ends on described first limit from the midpoint on described first limit, in each operation amplifier subelement
The size of operational amplifier increases to two terminal type non-linears on described first limit from the midpoint on described first limit, so that through each fortune
Calculate the mould after amplifying output pin corresponding to subelement, described operation amplifier subelement and the transfer wire that is connected with described pin
The attenuation degree intending data signal is consistent；Or, when the number of the operational amplifier in each operation amplifier subelement is from described
When the midpoint on the first limit is gradually increased to the two ends on described first limit, the number of the operational amplifier in each operation amplifier subelement
Mesh from the midpoint on described first limit to described first limit two terminal type non-linears increase so that through each operation amplifier subelement,
Analog data letter after output pin that described operation amplifier subelement is corresponding and the transfer wire that is connected with described output pin
Number attenuation degree consistent.
10. a liquid crystal indicator, it is characterised in that described liquid crystal indicator includes such as claim 1～9 any one
Described data driver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610675907.7A CN106057166A (en) | 2016-08-16 | 2016-08-16 | Data driver and liquid crystal display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610675907.7A CN106057166A (en) | 2016-08-16 | 2016-08-16 | Data driver and liquid crystal display device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106782418A (en) * | 2017-03-08 | 2017-05-31 | 京东方科技集团股份有限公司 | The driving method of display panel, device and display device |
| WO2019113894A1 (en) * | 2017-12-14 | 2019-06-20 | 深圳市柔宇科技有限公司 | Liquid crystal display panel and drive ic thereof |
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| WO2019113894A1 (en) * | 2017-12-14 | 2019-06-20 | 深圳市柔宇科技有限公司 | Liquid crystal display panel and drive ic thereof |
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Application publication date: 20161026 |