CN1982957A - Liquid-crystal display device, its driving circuit and method - Google Patents
Liquid-crystal display device, its driving circuit and method Download PDFInfo
- Publication number
- CN1982957A CN1982957A CN 200510120724 CN200510120724A CN1982957A CN 1982957 A CN1982957 A CN 1982957A CN 200510120724 CN200510120724 CN 200510120724 CN 200510120724 A CN200510120724 A CN 200510120724A CN 1982957 A CN1982957 A CN 1982957A
- Authority
- CN
- China
- Prior art keywords
- circuit
- liquid crystal
- cramping
- control
- pixel
- 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.)
- Granted
Links
Images
Abstract
A driving circuit of liquid display device consists of a scan driving circuit for driving scan lines, a data driving circuit for driving data lines, a control circuit for controlling said scan and data driving circuits, a numbers of pixel units being defined out by a numbers of scan lines and a numbers of data lines as each pixel unit being formed by a pixel electrode and a common electrode a liquid crystal pinch voltage automatic detection-regulation circuit for detecting voltage signal loaded on said pixel and common electrodes. Its driving method is also disclosed.
Description
[technical field]
The invention relates to a kind of liquid crystal indicator driving circuit, adopt the liquid crystal indicator and the driving method of this driving circuit.
[background technology]
Because advantages such as the liquid crystal indicator tool are light, thin, power consumption is little, it is widely used in modernized information equipments such as TV, mobile computer, mobile phone, personal digital assistant.
Seeing also Fig. 1, is a kind of liquid crystal indicator driving circuit synoptic diagram of prior art.This liquid crystal indicator driving circuit 1 comprises that sweep trace 101, m (m 〉=1) row that a control circuit 11, scan driving circuit 12, a data drive circuit 13, n (n 〉=1) row are parallel to each other are parallel to each other and the thin film transistor (TFT) of the data line 102, this sweep trace 101 of some vicinities and this data line 102 infalls that intersect with these sweep trace 101 insulation respectively (Thin FilmTransistor, TFT) 106, some pixel electrodes 103, one and the public electrode 105 that is oppositely arranged of this pixel electrode 103.
The Minimum Area that this sweep trace 101 and this data line 102 are enclosed defines a pixel cell.Each pixel cell comprises a thin film transistor (TFT) 106, a pixel electrode 103, a public electrode 105 and is clipped in liquid crystal molecule between this two electrode 103,105.The user mode of these thin film transistor (TFT) 106 these pixel cells of control.
Outer signals is sent into this control circuit 11, and this control circuit 11 sends control signal and controls this scan drive circuit 12 and 13 work of this data driving circuit, and transmits corresponding video signals to this data driving circuit 13.The scanning voltage of these scan drive circuit 12 outputs is carried on the grid g of corresponding thin film transistor (TFT) 106 by these some sweep traces 101, corresponding thin film transistor (TFT) 106 is opened, the data voltage of these data drive circuit 13 outputs is carried on the source electrode s of corresponding thin film transistor (TFT) 106 by this plurality of data line 102, if this moment, this thin film transistor (TFT) 106 was in open mode, then this data voltage can be sent to the drain electrode d of this thin film transistor (TFT) 106 and be carried on this pixel electrode 103,105 of this pixel electrode 103 and this public electrodes also load a voltage on this public electrode 105, so can produce the rotation of an electric field with the control liquid crystal molecule.
Because liquid crystal molecule has anisotropic transmissivity, when electric field was loaded into liquid crystal molecule between this two electrode 103,105, the electric field intensity that can be loaded by control was to realize the adjustment to the light amount of penetrating of some pixel cells.So, if load unidirectional electric field all the time to drive the liquid crystal molecule between this two electrode 103,105, then liquid crystal molecule is blunt gradually to the reaction meeting of electric field.Produce for fear of this problem, must on this pixel electrode 103 and this public electrode 105, load alternating voltage.Forward voltage should equal reverse voltage under same GTG, film flicker phenomenon (flicker) will occur if having big difference.The absolute value of this forward voltage and the absolute value of this reverse voltage are referred to as the liquid crystal cramping.
In liquid crystal panel exploitation and production run, must measure the liquid crystal cramping under the different GTGs, prior art all be by the survey waveform again Calculation Method obtain, more loaded down with trivial details, be unfavorable for improving the speed of product development and production.
[summary of the invention]
In order to overcome film flicker phenomenon in the prior art and manually to detect the problem of liquid crystal cramping, the invention provides and a kind ofly can improve the film flicker phenomenon automatically and can directly detect the liquid crystal indicator driving circuit of liquid crystal cramping and adopt the liquid crystal indicator of this driving circuit and a driving method is provided.
A kind of liquid crystal indicator driving circuit, it comprises: some sweep traces; Plurality of data line and this some sweep traces intersect; Scan driving circuit is used for driving these some sweep traces; One data drive circuit is used to drive this plurality of data line; One control circuit is controlled this scan drive circuit and this data drive circuit; Some pixel cells are defined by these some sweep traces and this plurality of data line, and each pixel cell comprises a pixel electrode, one and the public electrode that is oppositely arranged of this pixel electrode.This liquid crystal indicator driving circuit comprises that further a liquid crystal cramping detects regulating circuit automatically, it is used to detect the pixel electrode that is carried in arbitrary pixel cell and the voltage signal on the public electrode, produce a liquid crystal cramping, and export one and adjust instruction control and be carried in voltage signal on pixel electrode and the public electrode.
A kind of liquid crystal indicator, it comprises: one first substrate, and it comprises some sweep traces, data line some and that intersect with this sweep trace respectively, plurality of thin film transistor and the some pixel electrodes that is connected with this thin film transistor (TFT) that is positioned at these some sweep traces and the plurality of data line place of intersecting; One second substrate and this first substrate are oppositely arranged, and it comprises a public electrode relative with these some pixel electrodes; One liquid crystal layer is between this first, second substrate; Scan driving circuit is connected in order to drive these some sweep traces with these some sweep traces; One data drive circuit is connected in order to drive these some data lines with this plurality of data line; One control circuit is connected with this data drive circuit in order to control this scan drive circuit and this data drive circuit with this scan drive circuit.This liquid crystal indicator comprises that further a liquid crystal cramping detects regulating circuit automatically, it is used to detect the pixel electrode that is carried in arbitrary pixel cell and the voltage signal on the public electrode, produce a liquid crystal cramping, and export one and adjust instruction control and be carried in voltage signal on pixel electrode and the public electrode.
A kind of liquid crystal display apparatus driving circuit, it comprises the steps: that a. provides a liquid crystal indicator, and it comprises some pixel cells, and each pixel cell comprises a pixel electrode and a public electrode; B. detect the pixel electrode and the voltage signal on the public electrode of the arbitrary pixel cell of this liquid crystal indicator and produce a liquid crystal cramping; C. compare two detected in succession liquid crystal crampings and produce a control signal; D. utilize the voltage signal of this control signal control loaded on pixel electrode and public electrode.
Compared to prior art, liquid crystal indicator driving circuit of the present invention comprises a subtraction circuit, a comparator circuit and an adjustment circuit.This subtraction circuit can directly detect the liquid crystal cramping, this comparator circuit is converted to this liquid crystal cramping digital signal and sends control signal corresponding, this adjustment circuit produces corresponding adjustment instruction and sends into this control circuit after receiving this control signal, this control circuit is controlled the data voltage that this data drive circuit increases or reduces to export, thereby reaches the automatic purpose of improving liquid crystal indicator film flicker phenomenon.Simultaneously, this subtraction circuit tool one external delivery point is used to export the liquid crystal cramping, can be used for gamma (Gamma) regulate, crosstalk (Crosstalk) test and other measurement of correlation.
Liquid crystal indicator of the present invention comprises a subtraction circuit, a comparator circuit and an adjustment circuit.This subtraction circuit can directly detect the liquid crystal cramping, this comparator circuit is converted to this liquid crystal cramping digital signal and sends control signal corresponding, this adjustment circuit produces corresponding adjustment instruction and sends into this control circuit after receiving this control signal, this control circuit is controlled the data voltage that this data drive circuit increases or reduces to export, thereby reaches the automatic purpose of improving liquid crystal indicator film flicker phenomenon.Simultaneously, this subtraction circuit tool one external delivery point is used to export the liquid crystal cramping, can be used for gamma and regulates, crosstalks and test and other measurement of correlation.
Liquid crystal display apparatus driving circuit provided by the invention can reach the automatic purpose of improving the film flicker phenomenon on the one hand; On the other hand, can directly detect the liquid crystal cramping, make things convenient for the staff to carry out work such as gamma adjusting, the test of crosstalking, help improving the speed of product development and production.
[description of drawings]
Fig. 1 is a kind of liquid crystal indicator driving circuit synoptic diagram of prior art.
Fig. 2 is the synoptic diagram of liquid crystal indicator of the present invention.
Fig. 3 is the subtraction circuit synoptic diagram of liquid crystal indicator shown in Figure 2.
Fig. 4 is the comparator circuit synoptic diagram of liquid crystal indicator shown in Figure 2.
Fig. 5 is the adjustment circuit diagram of liquid crystal indicator shown in Figure 2.
[embodiment]
Seeing also Fig. 2, is the synoptic diagram of liquid crystal indicator of the present invention.This liquid crystal indicator 2 comprises one first substrate (figure does not show), one and second substrate that is oppositely arranged of this first substrate (figure does not show), one liquid crystal layer (figure do not show) between this two substrates, one control circuit 21, scan driving circuit 22, one data drive circuit 23, the sweep trace 201 that n (n 〉=1) row are parallel to each other, the data line 202 that m (m 〉=1) row is parallel to each other and intersects with these sweep trace 201 insulation respectively, some pixel cells that define by this sweep trace 201 and this data line 202, one subtraction circuit 24, one comparator circuit 25 and one is adjusted circuit 26.
Each pixel cell comprises the thin film transistor (TFT) 206, a pixel electrode 203, one and the public electrode 205 that is oppositely arranged of this pixel electrode 203 and be sandwiched in liquid crystal molecule between this two electrode 203,205 of contiguous this sweep trace 201 and this data line 202 infalls.The user mode of these thin film transistor (TFT) 206 these pixel cells of control.
Outer signals is imported this control circuit 21, and this control circuit 21 sends a control signal and controls this scan drive circuit 22 and 23 work of this data driving circuit, and transmits corresponding video signals to this data driving circuit 23.The scanning voltage of these scan drive circuit 22 outputs is carried on the grid g of corresponding thin film transistor (TFT) 206 by these some sweep traces 201, corresponding thin film transistor (TFT) 206 is opened, the data voltage of these data drive circuit 23 outputs is carried on the source electrode s of corresponding thin film transistor (TFT) 206 by this plurality of data line 202, if this moment, this thin film transistor (TFT) 206 was in open mode, then this data voltage can be sent to the drain electrode d of this thin film transistor (TFT) 206 and be carried on this pixel electrode 203, also load a voltage on this public electrode 205, so 205 of this pixel electrode 203 and this public electrodes can produce the rotation of an electric field with the control liquid crystal molecule, the direction of this electric field can cyclical variation.The voltage signal that is carried on this pixel electrode 203 and this public electrode 205 is sent into this subtraction circuit 24 simultaneously, this subtraction circuit 24 outputs one liquid crystal cramping is to this comparator circuit 25, these comparator circuit 25 outputs one control signal to this adjustment circuit 26, this is adjusted circuit 26 outputs one and adjusts instruction to this control circuit 21, and this control circuit 21 is controlled these data driver 23 corresponding increases or reduced data voltage output.This subtraction circuit 24 export simultaneously the liquid crystal cramping to external equipment (figure do not show) as gamma conditioning equipment, the testing apparatus etc. of crosstalking.
See also Fig. 3, Fig. 4 and Fig. 5.Fig. 3 is the subtraction circuit synoptic diagram of liquid crystal indicator shown in Figure 2, and Fig. 4 is the comparator circuit synoptic diagram of liquid crystal indicator shown in Figure 2, and Fig. 5 is the adjustment circuit diagram of liquid crystal indicator shown in Figure 2.This subtraction circuit 24 comprises one first operational amplifier 2451, one second operational amplifier 2452, one first resistance 2461, one second resistance 2462, one the 3rd resistance 2463, one the 4th resistance 2464 and one the 5th resistance 2465.Wherein, the resistance value of this first resistance 2461 and this second resistance 2462 equates that the resistance value of the 3rd resistance 2463, the 4th resistance 2464 and the 5th resistance 2465 equates.One input end of this subtraction circuit 24 is connected by the inverting input of this first resistance 2461 and this first operational amplifier 2451.The in-phase input end ground connection of this first operational amplifier 2451; Its output terminal is fed back to its inverting input by this second resistance 2462, and the inverting input by the 4th resistance 2464 and this second operational amplifier 2452 is connected simultaneously.The in-phase input end ground connection of this second operational amplifier 2452, its output terminal is fed back to its inverting input by the 5th resistance 2465.Another input end of this subtraction circuit 24 is connected by the inverting input of the 3rd resistance 2463 and this second operational amplifier 2452, and the output terminal of this subtraction circuit 24 directly connects the output terminal of this second operational amplifier 2452.Be carried in voltage signal on this pixel electrode 203 and this public electrode 205 and send into two input ends of this subtraction circuit 24 respectively, the output terminal of this subtraction circuit 24 is exported the poor of two voltage signals, i.e. the liquid crystal cramping.
This comparator circuit 25 comprises an AD converter 253, a register 254 and an arithmetical unit 255.This AD converter 253 is converted to a digital signal with the liquid crystal cramping of input, and it is temporary that this digital signal is sent into this register 254, and this arithmetical unit 255 takes out temporary digital signal from this register 254 and carries out difference calculating.
This adjustment circuit 26 comprises that a phase inverter 263, adds 1 device 264 and and subtracts 1 device 265.This phase inverter 263 and this subtract 1 device 265 and are cascaded, and add 264 parallel connections of 1 device with this then.Difference on the occasion of control signal directly send into this and add 1 device 264, this adds 264 outputs one of 1 device and adds 1 instruction; Difference is that the control signal of negative value is sent into this phase inverter 263 earlier and carried out anti-phasely, sends into this then and subtracts 1 device 265, and this subtracts 265 outputs one of 1 device and subtracts 1 instruction.
The driving method of above-mentioned liquid crystal indicator 2 comprises the steps: that a. detects the pixel electrode and the voltage signal on the public electrode of the arbitrary pixel cell of this liquid crystal indicator and produces a liquid crystal cramping; B. compare two detected in succession liquid crystal crampings and produce a control signal; C. this control signal is converted to one and adjusts instruction; D. will adjust instruction and send into this control circuit, remain unchanged thereby make the difference that is carried in the voltage signal on this pixel electrode and this public electrode change front and back at direction of an electric field in order to control the output that this data drive circuit changes data voltage.
Step a, the voltage signal that is carried on this public electrode 205 and this pixel electrode 203 is input to this subtraction circuit 24 respectively, after this two voltage signal is handled by this subtraction circuit 24, this subtraction circuit 24 outputs one liquid crystal cramping.This liquid crystal cramping is sent into this comparator circuit 25, this liquid crystal cramping is sent into external equipment (figure does not show) as gamma conditioning equipment, the testing apparatus etc. of crosstalking by another output terminal of this subtraction circuit 24 simultaneously, regulates, crosstalks and test and other measurement of correlation to be used for gamma.
Step b, the liquid crystal cramping of exporting when this subtraction circuit 24 inputs to this comparator circuit 25, and its AD converter 253 is converted to digital signal with this liquid crystal cramping, and it is temporary that this digital signal is sent into this register 254.This AD converter 253 continues to receive another liquid crystal cramping and be converted into digital signal from this subtraction circuit 24, and it is temporary that this digital signal is sent into this register 254.This arithmetical unit 255 takes out this two digital signal of keeping in from this register 254 then, carries out the difference computing, sends control signal corresponding, and this control signal is sent into this comparator circuit 25.
Step c, the enable signal that this adjustment circuit 26 at first receives 25 inputs of this comparator circuit activates this and adds 1 device 264 and this subtracts 1 device 265, then receive the control signal of these comparator circuit 25 inputs, this control signal makes and adds 1 device 264 or subtract the work of 1 device 265, and this adds 1 device 264 or subtracts that 1 device 265 is corresponding to be sent one and add 1 or subtract 1 instruction.
Steps d is realized by this control circuit 21 and this data drive circuit 23.Add 1 or subtract 1 instruction and send into this control circuit 21 from 26 outputs of this adjustment circuit, this control circuit 21 is controlled these data drive circuit 23 corresponding increases or is reduced the output of data voltage and remains unchanged in direction of an electric field change front and back to guarantee the difference that is carried in the voltage signal on this pixel electrode 203 and this public electrode 205, thereby reaches the purpose that weakens film flicker.
Compared to prior art, liquid crystal indicator 2 of the present invention comprises a subtraction circuit 24, a comparator circuit 25 and an adjustment circuit 26.This subtraction circuit 24 can directly detect the liquid crystal cramping, this comparator circuit 25 is converted to this liquid crystal cramping digital signal and sends control signal corresponding, this adjustment circuit 26 is converted into corresponding adjustment instruction and sends into this control circuit 21 after receiving this control signal, these data drive circuit 23 increases of these control circuit 21 controls or the data voltage that reduces to export remain unchanged before and after direction of an electric field changes to guarantee the difference that is carried in the voltage signal on this pixel electrode 203 and this public electrode 205, thereby reach the automatic purpose of improving the film flicker phenomenon.Simultaneously, this subtraction circuit 24 can be exported the liquid crystal cramping to external equipment, can be used for gamma and regulates, crosstalks and test and other measurement of correlation.
The driving method of liquid crystal indicator 2 provided by the invention can reach the automatic purpose of improving the film flicker phenomenon on the one hand; On the other hand, can directly detect the liquid crystal cramping, make things convenient for the staff to carry out work such as gamma adjusting, the test of crosstalking, help improving the speed of product development and production.
Claims (10)
1. liquid crystal indicator driving circuit, it comprises: some sweep traces; Plurality of data line and this some sweep traces intersect; Scan driving circuit is used for driving these some sweep traces; One data drive circuit is used to drive this plurality of data line; One control circuit is controlled this scan drive circuit and this data drive circuit; Some pixel cells are defined by these some sweep traces and this plurality of data line, and each pixel cell comprises a pixel electrode, one and the public electrode that is oppositely arranged of this pixel electrode; It is characterized in that: it comprises that further a liquid crystal cramping detects regulating circuit automatically, it is used to detect the pixel electrode that is carried in arbitrary pixel cell and the voltage signal on the public electrode, produce a liquid crystal cramping, and export one and adjust instruction control and be carried in voltage signal on pixel electrode and the public electrode.
2. liquid crystal indicator driving circuit as claimed in claim 1, it is characterized in that: this liquid crystal cramping detects a subtraction circuit, a comparator circuit and the adjustment circuit that regulating circuit further comprises series connection successively automatically, the pixel electrode and the voltage signal on the public electrode that are carried in arbitrary pixel cell are imported from this subtraction circuit, and this is adjusted circuit output one and adjusts instruction.
3. liquid crystal indicator driving circuit as claimed in claim 2, it is characterized in that: this subtraction circuit detects and is carried in the pixel electrode and the voltage signal on the public electrode of arbitrary pixel cell and produces a liquid crystal cramping, whether this comparator circuit relatively this two liquid crystal cramping of importing in succession equates and exports a control signal that this adjustment circuit is converted to an adjustment instruction with this control signal and sends into this control circuit.
4. liquid crystal indicator driving circuit as claimed in claim 2 is characterized in that: this subtraction circuit comprises another output terminal, and it is connected with external equipment in order to output liquid crystal cramping.
5. liquid crystal indicator, it comprises: one first substrate, and it comprises some sweep traces, data line some and that intersect with this sweep trace respectively, plurality of thin film transistor and the some pixel electrodes that is connected with this thin film transistor (TFT) that is positioned at these some sweep traces and the plurality of data line place of intersecting; One second substrate and this first substrate are oppositely arranged, and it comprises a public electrode relative with these some pixel electrodes; One liquid crystal layer is between this first, second substrate; Scan driving circuit is connected in order to drive these some sweep traces with these some sweep traces; One data drive circuit is connected in order to drive these some data lines with this plurality of data line; One control circuit is connected with this data drive circuit in order to control this scan drive circuit and this data drive circuit with this scan drive circuit; It is characterized in that: it comprises that further a liquid crystal cramping detects regulating circuit automatically, it is used to detect the pixel electrode that is carried in arbitrary pixel cell and the voltage signal on the public electrode, produce a liquid crystal cramping, and export one and adjust instruction control and be carried in voltage signal on pixel electrode and the public electrode.
6. liquid crystal display apparatus driving circuit, it comprises the steps: that a. provides a liquid crystal indicator, and it comprises some pixel cells, and each pixel cell comprises a pixel electrode and a public electrode; B. detect the pixel electrode and the voltage signal on the public electrode of the arbitrary pixel cell of this liquid crystal indicator and produce a liquid crystal cramping; C. compare two detected in succession liquid crystal crampings and produce a control signal; D. utilize the voltage signal of this control signal control loaded on pixel electrode and public electrode.
7. liquid crystal display apparatus driving circuit as claimed in claim 6 is characterized in that: this driving method further comprises step e: to external equipment output liquid crystal cramping.
8. liquid crystal display apparatus driving circuit as claimed in claim 6 is characterized in that: this liquid crystal indicator comprises that further one drives the data drive circuit of these some pixel cells, the control circuit of this data drive circuit of control.
9. liquid crystal display apparatus driving circuit as claimed in claim 8, it is characterized in that: this driving method further comprises step f: this control signal is converted to an adjustment instruction sends into this control circuit, and control the output that this data drive circuit changes data voltage through this control circuit.
10. liquid crystal display apparatus driving circuit as claimed in claim 9 is characterized in that, and: step b is realized by a subtraction circuit, and step c is realized that by a comparator circuit step f adjusts circuit by one and realizes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101207240A CN100443965C (en) | 2005-12-16 | 2005-12-16 | Liquid-crystal display device, its driving circuit and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101207240A CN100443965C (en) | 2005-12-16 | 2005-12-16 | Liquid-crystal display device, its driving circuit and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1982957A true CN1982957A (en) | 2007-06-20 |
| CN100443965C CN100443965C (en) | 2008-12-17 |
Family
ID=38165616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101207240A Expired - Fee Related CN100443965C (en) | 2005-12-16 | 2005-12-16 | Liquid-crystal display device, its driving circuit and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100443965C (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104238224A (en) * | 2013-06-07 | 2014-12-24 | 元太科技工业股份有限公司 | Display panel and method for manufacturing the same |
| CN104635362A (en) * | 2013-11-08 | 2015-05-20 | 群创光电股份有限公司 | Display panel and display equipment using same |
| CN107464518A (en) * | 2017-08-24 | 2017-12-12 | 京东方科技集团股份有限公司 | A kind of display control method, feedback circuit, display device and IC circuits |
| CN108269544A (en) * | 2018-01-31 | 2018-07-10 | 京东方科技集团股份有限公司 | Flicker drift optimization circuit and display panel, display device |
| WO2020093467A1 (en) * | 2018-11-09 | 2020-05-14 | 惠科股份有限公司 | Drive circuit, drive method, and display device |
| WO2020140755A1 (en) * | 2019-01-02 | 2020-07-09 | 京东方科技集团股份有限公司 | Voltage compensation circuit and method, display drive circuit, display device |
| CN113206391A (en) * | 2021-04-09 | 2021-08-03 | 华中科技大学 | Latch-based intelligent super surface, control method thereof and controller |
| CN116486746A (en) * | 2023-04-28 | 2023-07-25 | 惠科股份有限公司 | Display panel and display device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11326957A (en) * | 1998-03-20 | 1999-11-26 | Toshiba Corp | Liquid crystal display device |
| JP4907035B2 (en) * | 2002-09-25 | 2012-03-28 | シャープ株式会社 | Liquid crystal display device and driving method thereof |
| JP2004264677A (en) * | 2003-03-03 | 2004-09-24 | Hitachi Displays Ltd | Liquid crystal display device |
| CN100489604C (en) * | 2004-12-30 | 2009-05-20 | 友达光电股份有限公司 | Liquid crystal display and display method thereof |
-
2005
- 2005-12-16 CN CNB2005101207240A patent/CN100443965C/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9542879B2 (en) | 2013-06-07 | 2017-01-10 | E Ink Holdings Inc. | Display panel |
| CN104238224A (en) * | 2013-06-07 | 2014-12-24 | 元太科技工业股份有限公司 | Display panel and method for manufacturing the same |
| CN104635362A (en) * | 2013-11-08 | 2015-05-20 | 群创光电股份有限公司 | Display panel and display equipment using same |
| US10726806B2 (en) | 2017-08-24 | 2020-07-28 | Boe Technology Group Co., Ltd. | Display control method, feedback circuit, display device and IC circuit |
| CN107464518A (en) * | 2017-08-24 | 2017-12-12 | 京东方科技集团股份有限公司 | A kind of display control method, feedback circuit, display device and IC circuits |
| CN108269544A (en) * | 2018-01-31 | 2018-07-10 | 京东方科技集团股份有限公司 | Flicker drift optimization circuit and display panel, display device |
| US11138916B2 (en) | 2018-11-09 | 2021-10-05 | HKC Corporation Limited | Drive circuit, drive method and display apparatus |
| WO2020093467A1 (en) * | 2018-11-09 | 2020-05-14 | 惠科股份有限公司 | Drive circuit, drive method, and display device |
| WO2020140755A1 (en) * | 2019-01-02 | 2020-07-09 | 京东方科技集团股份有限公司 | Voltage compensation circuit and method, display drive circuit, display device |
| US11195451B2 (en) | 2019-01-02 | 2021-12-07 | Hefei Boe Display Technology Co., Ltd. | Voltage compensation circuit and method to compensate gamma voltage and enabling target pixel voltages to be consistent |
| CN113206391A (en) * | 2021-04-09 | 2021-08-03 | 华中科技大学 | Latch-based intelligent super surface, control method thereof and controller |
| CN116486746A (en) * | 2023-04-28 | 2023-07-25 | 惠科股份有限公司 | Display panel and display device |
| CN116486746B (en) * | 2023-04-28 | 2024-04-12 | 惠科股份有限公司 | Display panel and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100443965C (en) | 2008-12-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100443965C (en) | Liquid-crystal display device, its driving circuit and method | |
| CN105679230B (en) | A kind of display driver circuit, its driving method and display device | |
| US10210832B2 (en) | Display module having two display regions respectively driven by two drive chips connected with flexible circuit and liquid crystal display screen including same | |
| CN105096780B (en) | The signal test circuit of substrate circuit and display panel | |
| CN101685207B (en) | Measuring method and device | |
| WO2016011781A1 (en) | Display device | |
| US20070164952A1 (en) | Apparatus and method for driving a liquid crystal display | |
| US9275569B2 (en) | Flat panel display, threshold voltage sensing circuit, and method for sensing threshold voltage | |
| CN107452354A (en) | A kind of GTG control circuit, display driver circuit and display device | |
| US20130038516A1 (en) | Display apparatus and gamma voltage generator thereof | |
| CN109243355A (en) | Gamma electric voltage correcting circuit, method and display device | |
| TWI277037B (en) | Liquid crystal display and it's driving circuit and driving method | |
| CN105609073A (en) | Drive circuit, drive method, and display apparatus | |
| CN102222485A (en) | Voltage stabilizing circuit module with temperature compensation function | |
| CN100543562C (en) | Liquid crystal panel drive circuit and LCD | |
| CN104240661A (en) | Polarity inversion driving method, polarity inversion driving device and display device | |
| CN107591137A (en) | Display device and its driving method | |
| CN102930816B (en) | Adjusting device and display device and adjusting method of data voltage | |
| CN102169680A (en) | Liquid crystal display module and adjustment method of response speed thereof | |
| CN101334543B (en) | Liquid crystal display device and driving method thereof | |
| CN101855667B (en) | Liquid crystal display device and its control method | |
| CN100529856C (en) | LCD panel and its driving circuit | |
| CN107564484A (en) | Display device and its driving method | |
| CN104978942B (en) | Drive circuit, driving method and display device | |
| CN100582903C (en) | Liquid crystal display apparatus and drive circuit as well as drive method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081217 Termination date: 20161216 |