CN1184261A - Liquid crystal panel and liquid crystal display device - Google Patents
Liquid crystal panel and liquid crystal display device Download PDFInfo
- Publication number
- CN1184261A CN1184261A CN97126289A CN97126289A CN1184261A CN 1184261 A CN1184261 A CN 1184261A CN 97126289 A CN97126289 A CN 97126289A CN 97126289 A CN97126289 A CN 97126289A CN 1184261 A CN1184261 A CN 1184261A
- Authority
- CN
- China
- Prior art keywords
- mentioned
- liquid crystal
- tft
- thin film
- film transistor
- 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.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3648—Control of matrices with row and column drivers using an active matrix
-
- 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
- G09G3/3648—Control of matrices with row and column drivers using an active matrix
- G09G3/3655—Details of drivers for counter electrodes, e.g. common electrodes for pixel capacitors or supplementary storage capacitors
-
- 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
- G09G3/3674—Details of drivers for scan electrodes
- G09G3/3677—Details of drivers for scan electrodes suitable for active matrices only
-
- 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
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0264—Details of driving circuits
- G09G2310/027—Details of drivers for data electrodes, the drivers handling digital grey scale data, e.g. use of D/A converters
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0247—Flicker reduction other than flicker reduction circuits used for single beam cathode-ray tubes
-
- 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
- G09G3/2007—Display of intermediate tones
- G09G3/2011—Display of intermediate tones by amplitude modulation
-
- 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
- G09G3/3614—Control of polarity reversal in general
Abstract
In driving the liquid crystal panel, the frequency of the base voltage applied to common electrodes is reduced without increasing flickering. Also, the deterioration of picture quality caused by concentration of current to the common electrodes is reduced. In a liquid crystal panel 101 having pixel portions 104, each including a thin film transistor, mounted thereon, a liquid crystal 107 and additional capacitors 108 as components of each pixel portion, have a common opposite electrode 112 on one side thereof opposite to the side where there is a pixel electrode 106. The opposite electrodes 112 of the pixel portions 104 connected to the same gate line 102 are divided in half and are respectively connected to two separate and opposite electrode lines 109, 110 to form the liquid crystal panel.
Description
The present invention relates to have the liquid crystal indicator of the liquid crystal panel of driven with active matrix mode, The present invention be more particularly directed to the structure and the driving method thereof of this liquid crystal panel.
In the liquid crystal panel of liquid crystal indicator, be sealed with the liquid crystal panel (tft liquid crystal panel) that has the driven with active matrix mode on the transparency carrier of liquid crystal, this liquid crystal panel is that the pixel section that is formed by thin film transistor (TFT), pixel capacitors etc. is arranged according to matrix-style.Described a kind of liquid crystal indicator in the clear 63-237095 document of TOHKEMY, this liquid crystal indicator carries out the colour demonstration by being applied to the corresponding tone voltage of video data on the thin film transistor (TFT).
Below the existing liquid crystal indicator that adopts the tft liquid crystal panel is described.Figure 15 is the equivalent circuit diagram of tft liquid crystal panel.In Figure 15, tft liquid crystal panel 201 comprises: the many gate lines 202 that along continuous straight runs extends; Many drain lines 203 of Yan Shening vertically; According to matrix-style configuration and the pixel section 204 that is connected with gate line 202 with the corresponding every drain line 203 of allocation position; According to common electrode (Com) 209 and the common electrode (Strg) 210 that are provided with for whole pixel section 204 shared modes.
Each pixel section 204 is made of thin film transistor (TFT) (TFT) 205, pixel capacitors 206, liquid crystal 208, additional capacitor 207.Here, liquid crystal 208 is held between pixel capacitors 206 and the common electrode (Com) 209, and additional capacitor 207 is held between pixel capacitors 206 and the common electrode (Strg) 210.In addition, each pixel section 204 among the colleague is by the driven of 1 identical gate line 202 mutually, and each pixel section 204 in the same column is by the driven of 1 identical drain line 203.
Figure 16 represents the one-piece construction of liquid crystal indicator.In Figure 16, liquid crystal indicator comprises: with pixel section according to the liquid-crystal controller 302 of the above-mentioned liquid crystal panel 201 of the capable n of m row configuration, output video data and various synchronizing signals, will the data voltage corresponding be applied to video data drain driver 306 on the drain line 203, with scanning voltage be applied to gate drivers 307 on the gate line 202, to being applied to the alternating voltage formation circuit 309 that voltage on each pixel section 204 exchanges processing, 310,313, cut apart resistance 311.
Liquid-crystal controller 302 is by circuit shown in Figure 17, with video data with data synchronizing signal locking successively, and send drain driver 306 to.In addition,, form the AC signal 304 of the polarity of specifying reference voltage, and export to alternating voltage formation circuit 309,310,313 by vertical synchronizing signal 501 and horizontal-drive signal 502 by circuit shown in Figure 180.This AC signal 304 makes the mode of the reversal of poles that puts on the voltage on each pixel section 204 with each cycle according to each horizontal-drive signal and changes.
In gate drivers 307, with regard to structure shown in Figure 19, shift register 603 makes synchronizing signal 601 displacements that the 1st row is effectively selected according to the synchronizing signal 602 of the frequency values identical with horizontal-drive signal in inside, logic level according to this output signal 604, level shifter 605 and voltage selecting circuit 607 formation liquid crystal drive grid voltage G (1), G (2), G (3) ..., and it is applied on the gate line 202.Thus, according to G (1), G (2), G (3) ... order, on gate line 202, apply the selection voltage that can make thin film transistor (TFT) 205 be in conducting state.
In drain driver 306, with regard to structure shown in Figure 20, according to the sampling clock 706 that forms by shift register 705, latch cicuit 707 obtains video data and storage line by line in order.The synchronizing signal 704 of video data in every row of being stored by having the frequency values identical with horizontal-drive signal, obtain for latch cicuit 709 simultaneously, be transformed to the corresponding drain voltage Vd of alternating voltage and be applied on the drain line 203 by tone voltage circuit 711.
In addition, if the polarity of voltage that is applied on the liquid crystal 208 of each pixel section 204 in the liquid crystal panel 201 keeps identical in per image duration, the film flicker phenomenon can take place.In order to reduce this flicker, in above-mentioned liquid crystal indicator, form circuit 309,310,313 etc. by alternating voltage, be applied to the reversal of poles of the voltage on each pixel section 204 at per departure date chien shih.
According to Figure 21 the action of above-mentioned liquid crystal indicator is described below.Be defined as selecting voltage Vgon parallel mutually the voltage VG (2) of the gate line 202 of the 2nd horizontal line (the 2nd row) with gate drivers 307, the tone voltage Vd that drain driver 306 will obtain according to the video data and the AC signal of the 2nd row is applied on the every drain line 203.Thus, in each pixel section 204 of the 2nd row, thin film transistor (TFT) 205 is in conducting state, applies tone voltage Vd on pixel capacitors 206, and (Com Strg) also is applied with the reference voltage that obtains according to AC signal on 209,210 at common electrode.Potential difference (PD) between this tone voltage and the reference voltage is controlled the transmitance of liquid crystal 208, and after voltage VG (2) was in closed condition for non-selection voltage Vgoff thin film transistor (TFT) 205, this liquid crystal 208 and additional capacitor 207 still kept above-mentioned potential difference (PD).
If gate drivers 307 becomes non-selection voltage Vgoff with voltage VG (2) and the voltage VG (3) of gate line 202 of the 3rd row become select voltage Vgon, then drain driver 306 is according to the 3rd row video data and polar signal output tone voltage Vd.Thus, each pixel section 204 in the 3rd row can be carried out the driving identical with aforesaid way.
In above-mentioned action, owing to be applied to common electrode (Com, when Strg) level that pushes away voltage of the base on 209,210 is positive polarity level VcomP, apply negative tone voltage Vd on the pixel capacitors 206 of the pixel section 204 in the driven object row, potential difference (PD) between liquid crystal 208 and the additional capacitor 207 is being the occasion of benchmark with the reference voltage, and it is a negative polarity.In contrast, when common electrode (Com, Strg) 209,210 was negative polarity level VcomN, the potential difference (PD) between liquid crystal 208 and the additional capacitor 207 was a positive polarity.
In the manner described above, in above-mentioned existing liquid crystal indicator, all the additional capacitor 207 of pixel section 204 is connected with common electrode Strg210 jointly, and in addition, its capacity is greater than the potential difference (PD) of the additional capacitor 207 in each pixel section 20 of liquid crystal 208 in the identical polarity of every row maintenance.Thus, if when driving pixel section, apply the voltage of opposed polarity on the additional capacitor 207, then electric current can be from concentrated flowing through between the additional capacitor 207 of the pixel section 204 that drives simultaneously and the common electrode Strg210, because the resistance of the lead of common electrode or the influence of additional capacitor, the voltage of common electrode can produce deviation.Because this deviation, in existing liquid crystal indicator, in the liquid crystal 208 apply voltage with and video data corresponding original to apply voltage different, thereby the problem of generation image quality variation.
In addition, in above-mentioned existing liquid crystal indicator,, exchange processing, and when driving, make its reversal of poles by every row to the reference voltage that puts on the common electrode in order to prevent to produce flicker.Thus, the voltage that puts on the common electrode is changed according to the higher frequency of 30kHz～60kHz, so also can produce the problem that increases power consumption.
So, the objective of the invention is under the situation that does not increase flicker, reduce the frequency values that puts on the voltage on the common electrode.In addition, also purpose of the present invention is that the image quality that reduces to produce because of the current concentration in the common electrode reduces.
To achieve these goals, the invention provides a kind of liquid crystal panel, it has 2 substrates being oppositely arranged, is filled in the liquid crystal between above-mentioned 2 substrates, it is characterized in that:
This liquid crystal panel has and is formed on the aforesaid substrate and the corresponding M * N of a pixel pixel section, many drain lines, many gate lines, 2 opposite electrode lines capable N of M row;
Above-mentioned each pixel section comprises:
Thin film transistor (TFT), this thin film transistor (TFT) have the gate electrode that is connected with any 1 above-mentioned gate line, the drain electrode, the source electrode that are connected with any 1 above-mentioned drain line;
Pixel capacitors, this pixel capacitors is connected with the source electrode of above-mentioned thin film transistor (TFT);
Opposite electrode, this opposite electrode is relative with above-mentioned pixel capacitors, and above-mentioned liquid crystal is applied electric field, and the transmitance of the above-mentioned liquid crystal in the corresponding pixel is changed;
Above-mentioned opposite electrode is divided into 2 groups, and it is connected respectively with above-mentioned 2 opposite electrode lines in each group.
In above-mentioned liquid crystal panel,, can in 2 groups of opposite electrodes, apply the different reference voltage of polarity by 2 opposite electrode lines.In addition in the occasion that applies the different reference voltage of polarity, when the liquid crystal of each pixel of liquid crystal panel is applied in the reference voltage of positive polarity, because liquid crystal phase difference with the reference voltage that is applied with negative polarity, even under the situation that the polarity of reference voltage does not change, still can produce and the identical effect of existing example that reference voltage is changed.Therefore, according to the present invention, even under the situation that the polarity of reference voltage is changed, still can control flicker fully.
In addition, the invention provides a kind of liquid crystal panel, it is characterized in that, in the liquid crystal panel of the invention described above, above-mentioned opposite electrode is relative with above-mentioned pixel capacitors, the electric capacity of above-mentioned electric field is kept in formation, and in the thin film transistor (TFT) inside that is connected with above-mentioned every gate line, the quantity of opposite electrode that is connected with the identical opposed electrode wires and the thin film transistor (TFT) that is connected with paired pixel capacitors is about N/2.
In above-mentioned liquid crystal panel, such as the occasion of a driving N thin film transistor (TFT) at the same time, owing to distribute to 2 opposite electrode lines according to the mode of equalization substantially from the electric current of liquid crystal and electric capacity outflow, electric current can not concentrate in wherein the opposite electrode line like this, thereby compared with the prior art, can reduce the reduction of the picture quality that causes because of the electric current in the opposite electrode line.
Fig. 1 is the equivalent circuit diagram of the liquid crystal panel of the 1st embodiment of the present invention;
Fig. 2 is the structural drawing of the liquid crystal indicator of the 1st embodiment;
Fig. 3 is the block scheme of the data processing division in the liquid-crystal controller;
Fig. 4 is the block scheme of the AC signal formation portion in the liquid-crystal controller;
Fig. 5 is the sequential chart of the processing of expression data processing division;
Fig. 6 is the block scheme of gate drivers;
Fig. 7 is the block scheme of drain driver;
Fig. 8 is the oscillogram of the action of the liquid crystal indicator of expression the 1st embodiment;
Fig. 9 is the equivalent circuit diagram of the liquid crystal panel of the 2nd embodiment of the present invention;
Figure 10 is the structural drawing of the liquid crystal indicator of the 2nd embodiment;
Figure 11 is the oscillogram of the action of the liquid crystal indicator of expression the 2nd embodiment;
Figure 12 is the equivalent circuit diagram of the liquid crystal panel of the 3rd embodiment of the present invention;
Figure 13 is the structural drawing of the liquid crystal indicator of expression the 3rd embodiment;
Figure 14 is the oscillogram of the action of the liquid crystal indicator of expression the 3rd embodiment;
Figure 15 is the equivalent circuit diagram of existing liquid crystal panel;
Figure 16 is the structural drawing of existing liquid crystal indicator;
Figure 17 is the block scheme of the data processing division in the existing liquid-crystal controller;
Figure 18 is the block scheme of the AC signal formation portion in the existing liquid-crystal controller;
Figure 19 is the block scheme of existing gate drivers;
Figure 20 is the block scheme of existing drain driver;
Figure 21 is the oscillogram of the action of the existing liquid crystal indicator of expression.
With reference to the accompanying drawings embodiments of the invention are described below.
Fig. 1 is the equivalent circuit diagram of the liquid crystal panel of the 1st embodiment of the present invention.Here, following embodiment is described, in this embodiment, be arranged with 4 row's pixel section along level, vertical direction respectively.
Each pixel section 104 is made of thin film transistor (TFT) (TFT) 105, pixel capacitors 106, liquid crystal 107,111, additional capacitor 108, opposite electrode 112.In addition, in 3 adjacent pixel section 104 of every row, be respectively arranged with the color filter (omitting among the figure) of R (red), G (green), B (indigo plant) look.Liquid crystal 111 is the auxiliary liquid crystal of liquid crystal 107.
As shown in the figure, liquid crystal 107,111 and additional capacitor 108 are held between pixel capacitors 106 and the opposite electrode 112.
The opposite electrode 112 that is arranged in odd-numbered line is connected with common electrode (Strg0) 109, and the opposite electrode 112 that is arranged in even number line is connected with common electrode (Strg1) 110.
The voltage G (1) of pixel section 104 by gate line 102 that is positioned in the odd column (1,3 row) of the 1st row drives.The pixel section 104 that is positioned at odd column in the 1st even column of going (2,4 row) and that be arranged in the 2nd row is by voltage G (2) driving.The pixel section 104 that is arranged in odd column even column and that be arranged in the 3rd row of the 2nd row drives by voltage G (3).In addition, the pixel section 104 that is arranged in as the even column of the 4th row of last column drives by voltage G (5).
Each pixel section 104 in the same column is by the driven of an identical drain line 203.
In the occasion that pixel section 104 is arranged according to the capable n of m row, be arranged in the even column of (a-1) row pixel section 104, drive (still, 1＜a＜m) with the pixel section 104 that is arranged in the capable odd column of a by voltage G (a).In addition, be arranged in the pixel section 104 of b row by voltage D (b) driving.
Fig. 2 is the structural drawing of the liquid crystal indicator of the 1st embodiment of the present invention.
Liquid crystal indicator shown in Figure 2 comprises: the above-mentioned liquid crystal panel 101 that display part 104 is wherein arranged according to the capable n row of m, form and export the liquid-crystal controller 902 of video data and various synchronizing signals, apply drain driver 907 on to drain line 103 with the corresponding data voltage of video data, apply the gate drivers 908 of scanning voltage on to gate line 102, by common electrode the alternating voltage that the opposite electrode 112 in each pixel section 104 applies reference voltage is formed circuit 910,911, cut apart resistance 912,913 to what the pixel capacitors in each pixel section 104 applied tone voltage.
Fig. 3 is the structural drawing of the circuit part of the formation video data in the liquid-crystal controller 902, and Fig. 4 is the structural drawing of the circuit part of the formation AC signal 904,905 in the liquid-crystal controller 902.
As shown in Figure 3, the circuit part of formation video data comprises data delay circuit 1003 and selects circuit 1005.The video data 1001 that is comprised in the bus signals of supplying with by the system (not shown) 901, send data delay circuit 1003 to the synchronizing signal 1002 of the transmitting time of expression video data.The video data of being supplied with 1001 just postpones according to the specified period in the synchronizing signal 1002 in data delay circuit 1003, and as video data 1004 outputs.Select circuit 1005 by by the represented method of the sequential chart among Fig. 5,, export to drain driver 907 afterwards according to video data 1001 and the delayed new video data 1006 of video data 1004 formation.Such as, foregoing circuit portion is according to (R2-0, G1-0, B2-0), (R1-1, G2-1, B1-1) ... order, will by the video data of the 1st row (R1-0, G1-0, B1-0), (R1-1, G1-1, B1-1) ..., the video data (R2-0 of the 2nd row, G2-0, B2-0), (R2-1, G2-1, B2-1) ... the capable replacement of video data of order input.In addition, parallel mutually with above-mentioned action, can show that the synchronizing signal of video data 1006 is exported to drain driver 907 and gate drivers 908.
As shown in Figure 4, the circuit part of formation AC signal comprises: trigger circuit 1103,1105,1111,1112, XOR circuit 1107, circuit for reversing 1109.The vertical synchronizing signal 1101 that is comprised in the bus signals 901 is carried out the processing of 2 frequency divisions by trigger circuit 1103, forms signal 1104, and sends trigger circuit 1111 to.Trigger circuit 1111 obtain the signal 1104 that is provided by following signal 1110, this signal 1110 reverses to the horizontal-drive signal in the bus signals 901 1102 and obtains, and exports to alternating voltage as AC signal 905 afterwards and forms circuit 910,911.This AC signal 905 is the signal in per reversal of poles 1 image duration.On the other hand, the horizontal-drive signal 1102 that is comprised in the bus signals 901 is carried out XOR by computing circuit 1107 and above-mentioned signal 1104 after carrying out 2 frequency divisions by trigger circuit 1105.This operation result obtains by above-mentioned signal 1110 in trigger circuit 1112, exports to drain driver 907 as AC signal 904 afterwards.This AC signal 904 is the signal of reversal of poles between per departure date.
Fig. 6 is the block scheme of gate drivers 908.
In Fig. 6, gate drivers 908 comprises: the shift register 1303 of m+1 position, level shifter 1305, voltage selecting circuit 1307.Send to by liquid-crystal controller 902 in the synchronizing signal 906 of gate drivers 908 and include: the synchronizing signal 1301 that the 1st row is effectively selected, the synchronizing signal 1302 that indication is switched selected row.When shift register 1303 input sync signals 1301, then the level with the signal at first of output signal 1304 is decided to be high level, and along with the input of synchronizing signal 1302, the output signal 1304 with high level moves in order.1307 pairs of level shifter 1305 and voltage selecting circuits apply the selection voltage that can make thin film transistor (TFT) 105 conductings with the output signal 1304 corresponding gate lines 102 with high level, and other gate line 102 is applied the non-selection voltage that thin film transistor (TFT) 205 cuts out.Thus, in gate line 102, voltage G (1), G (2) ..., G (m+1) becomes selection voltage in order, carries out aforesaid operations repeatedly.
Fig. 7 is the block scheme of drain driver 907.
In Fig. 7, drain driver 907 comprises: form the video data acquisition time shift register 1405, obtain the video data that keeps 1 row capable latch cicuit 1407,1409, formation and the corresponding positively charged of video data tone voltage positive tone voltage forming circuit 1411, formation and the corresponding electronegative tone voltage of video data negative tone voltage formation circuit 1413, align the voltage selector 1415 that tone voltage and negative tone voltage are selected and exported.
Shift register 1405 is according to the synchronizing signal 1402 that is comprised in the bus signals 903 that is provided by liquid-crystal controller 902,1403, form following timing signal 1406 and output it to latch cicuit 1407, this timing signal 1406 is used to make latch cicuit 1407 to obtain the video data 1401 that bus signals 901 is comprised in the mode of each horizontal line in order.Video data that obtained for latch cicuit 1407 and that be stored in 1 horizontal line in it is obtained by latch cicuit 1409 simultaneously by the synchronizing signal 1404 of bus signals 903, and by data bus 1410 send positive tone voltage forming circuit 1411 to, negative tone voltage forms circuit 1413.Each tone voltage forms that circuit 1411,1413 forms respectively and drain voltage Vd+1412, the drain voltage Vd-1414 of negative polarity of the corresponding positive polarity of video data of 1 horizontal line that provided, and outputs it to voltage selecting circuit 1415.Voltage selecting circuit 1415 is according to the AC signal 904 that is provided by liquid-crystal controller 902, and among the drain voltage Vd+1412 that provided and the drain voltage Vd-1414 is provided, and it is applied on the drain line 103.At this moment, the polarity of the drain voltage Vd that is applied in the drain line 103 of the drain line 103 of odd column and even column is different.In addition, in every drain line 103, between per departure date, alternately be applied with the drain voltage of positive polarity and the drain voltage of negative polarity.
Below to the action of the liquid crystal indicator of present embodiment being described according to Fig. 8.
Liquid-crystal controller 902 will according to row shown in Figure 5 replace resulting video data (R2-0, G1-0, B2-0), (R1-1, G2-1, B1-1) ... export to drain driver 907.When passing through gate drivers 908, the voltage G (2) of gate line 102 is when selecting voltage Vgon, and the thin film transistor (TFT) 105 of each pixel section 104 in the odd column of the even column of the 1st row and the 2nd row is in conducting state.Parallel mutually therewith, according to the even column of the 1st row and video data (above-mentioned R2-0, G1-0, B2-0, R1-1, G2-1, the B1-1 of each pixel in the 2nd odd column of going ...) and AC signal 904, tone voltage sends drain line 103 to from drain driver 907.This tone voltage is applied on the pixel capacitors 106 of each pixel section 104 that is in conducting state.(Strg0 Strg1) 109 or 110 is applied on the opposite electrode ac reference voltage by common electrode.Because be applied to the effect of the potential difference (PD) of the voltage on liquid crystal 107 and the additional capacitor 108, the transmitance of liquid crystal 107 is controlled, show thereby can carry out tone.In addition, after the voltage G (2) of gate line 102 became non-selection voltage Vgoff, liquid crystal 107 and additional capacitor 108 still kept above-mentioned potential difference (PD).
After between 1 departure date, when voltage G (2) becomes non-selection voltage Vgoff, voltage G (3) becomes when selecting voltage Vgon, thin film transistor (TFT) 105 in each pixel section 104 in the odd column of the even column of the 2nd row and the 3rd row is in conducting state, parallel mutually therewith, according to the video data and the AC signal 904 of each pixel in the odd column of the 2nd even column of going and the 3rd row, tone voltage is exported to drain line 130.Like this, between per 1 departure date, carry out above-mentioned action repeatedly,, drive whole pixel section 104 in per 1 image duration.
Such as, voltage G (2) become select voltage Vgon during, as shown in Figure 8 because in the pixel section 104 of the even column of the 1st row, the reference voltage V strg0 of common electrode (Strg0) 109 is the VstrgN of negative polarity, can produce positive potential difference (PD) like this.At this moment, because in the pixel section 104 of the 2nd odd column of going, the reference voltage V strg1 of common electrode (Strg1) 110 is positive voltage VstrgP, can produce negative potential difference (PD) like this.That is to say that the potential difference (PD) that is produced can alternately be reversed in each row polarity in each pixel section 104.
As mentioned above, in the liquid crystal indicator of present embodiment, simultaneously the electric current that produces because of the variation of reference voltage in driven n pixel section 104 is divided into two-way and flows into common electrode (Strg0, Strg1) 109,110.Do not flow into one of them common electrode because electric current can not be concentrated, compare with existing example like this, can reduce the reduction of the picture quality that variation caused that applies voltage of common electrode.
In addition, in the liquid crystal indicator of present embodiment, even be applied to each common electrode (Strg0, Strg1) 109, the polarity of the voltage on 110 is under the certain situation of maintenance 1 image duration, because positive voltage and negative voltage are applied on the liquid crystal of each pixel in the liquid crystal panel equably, thereby can obtain to prevent the effect of glimmering.Thus, keep preventing the effect of glimmering and be applied to common electrode that (Strg0, Strg1) frequency values of the reference voltage on 109,110 reduces, and therefore can reduce the consumption of electricity.
Be described according to Fig. 9～11 couple the 2nd embodiment of the present invention below.
Fig. 9 is the equivalent circuit diagram of the liquid crystal panel of the 2nd embodiment of the present invention.
Each pixel section 1604 in the above-mentioned liquid crystal panel 1601 be connected with corresponding gate line 1602 of the row of being arranged and the corresponding drain line 1603 of row arranged.That is to say that the pixel section 1604 in the b row in a is capable drives by voltage G (a), D (b).
In addition, in the pixel section 1604 in odd-numbered line, the opposite electrode 1612 in the odd column is connected with common electrode (Strg1) 1610 jointly, and the opposite electrode 1612 in the even column is connected with common electrode (Strg0) 1609 jointly.In the pixel section 1604 in even number line, opposite with aforesaid way, the opposite electrode 1612 in the odd column is connected with common electrode (Strg0) 1609, and the opposite electrode 1612 in the even column is connected with common electrode (Strg1) 1610.Therefore, the lead between the opposite electrode 1612 along inclined direction extends in the zone that forms pixel section 1604, and is connected with the pixel section 1604 of vergence direction.
Figure 10 is the structural drawing of the liquid crystal indicator of present embodiment.
Liquid crystal indicator shown in Figure 10 comprises: above-mentioned liquid crystal panel 1601, liquid-crystal controller 1701, drain driver 907, gate drivers 908, alternating voltage that pixel section is arranged according to the capable n row of m form circuit 910,911, cut apart resistance 912,913.In liquid crystal panel 1601, owing to drive pixel section 1604 line by line, liquid-crystal controller 1701 sends video data to drain driver 907 by existing circuit shown in Figure 17 like this.In addition, also can in gate drivers 908, adopt existing circuit shown in Figure 19.It is identical that the liquid crystal indicator that moves with among Fig. 2 is handled in interchange, and it adopts the alternating voltage among Fig. 2 to form circuit 910,911, cut apart resistance 912,913, in drain driver 907, adopts the circuit identical with Fig. 7.In addition, the circuit that forms AC signal in liquid-crystal controller 1701 also can use the circuit identical with Fig. 4.
According to Figure 11 the action of the liquid crystal indicator of present embodiment is described below.
With gate drivers 908 that the voltage G (2) of gate line 1602 is parallel mutually as the situation of selecting voltage (Vgon), drain driver 907 will be according to the video data (R2-0 in the 2nd row, G2-0, B2-0, R2-1, G2-1, B2-1 ...) the drain voltage Vd+, the Vd-that select with AC signal 904 export to drain line 1603.Thus, be applied with drain voltage Vd+ or Vd-and reference voltage on each pixel section 1604 in the 2nd row.Because put on the effect of the potential difference (PD) of the voltage on liquid crystal 1607 and the additional capacitor 1608, the transmitance of liquid crystal 1607 is controlled, show and carry out tone.So above-mentioned potential difference (PD) also after the voltage G (2) of gate line 1602 becomes non-selection voltage Vgoff, remains in liquid crystal 1607 and the additional capacitor 1608.
After between per 1 departure date, if voltage G (2) becomes non-selection voltage Vgoff, voltage G (3) becomes selection voltage Vgon, then the thin film transistor (TFT) 1605 in each pixel section 104 of the 3rd row is in conducting state, walk abreast mutually therewith, the tone voltage that video data in going according to the 3rd and AC signal 904 obtain is exported to drain line 1603.In the manner described above, between per 1 departure date, carry out identical action repeatedly, drive whole pixel section 104 in 1 image duration.
Such as, during voltage G (2) becomes selection voltage Vgon, in the pixel section 1604 of the odd column in the 2nd row, as shown in figure 11, because the reference voltage V strg0 of common electrode (Strg0) 1609 becomes the VstrgN of negative polarity, then can produce the potential difference (PD) of positive polarity.At this moment, in the pixel section in the even column of the 2nd row,, can produce the potential difference (PD) of negative polarity like this because the reference voltage V strg1 of common electrode (Strg1) 110 becomes the voltage VstrgP of positive polarity.That is to say the reversal of poles of the every row of current potential official post that produced in the pixel section 104 in every row.In addition, flow into each common electrode (Strg0, Strg1) 1609,1610 electric current flows in the respective wire of the electric current by each pixel in constituting the zone of pixel section 1604 respectively, thereby becomes the electric current of the n/2 pixel in the conductor area outside the zone that constitutes pixel section 1604.The situation that reduces resistance with lead in the conductor area outside the zone that constitutes pixel section 1604 by overstriking slightly is relative, is difficult to reduce resistance in the zone that constitutes pixel section 1604.Thus, only flow in the lead in constituting the zone of pixel section 1604 electric current of each pixel helps the situation on the low side of liquid crystal applied voltages.
In the manner described above, in the liquid crystal indicator of present embodiment, because the electric current that produces because of the variation of voltage in n the pixel section 1604 of the every row that drives at the same time is concentrated area inflow common electrode (Strg0, Strg1) in 1609,1610, thereby compare with existing example, can reduce the variation of the picture quality that the variation because of the voltage of common electrode causes.In addition, even put on each common electrode (Strg0, Strg1) polarity of the reference voltage on 109,110 is under situation about being maintained fixed per 1 image duration, owing to apply the voltage of positive polarity and the voltage of negative polarity equably in the liquid crystal of each pixel in the liquid crystal panel, even like this under the situation that the frequency values of reference voltage reduces, still can obtain to prevent the effect of glimmering, compare, can reduce power consumption with existing example.
Be described according to Figure 12～14 couple the 3rd embodiment of the present invention below.
Figure 12 is the equivalent circuit diagram of the liquid crystal panel of the 3rd embodiment of the present invention.In the liquid crystal panel 1901 in Figure 12, only each pixel section is different with the liquid crystal panel among Fig. 9 1601 with the connection status of common electrode.That is, in the liquid crystal panel 1901 in the present embodiment, the lead between the opposite electrode 1612 vertically extends in the zone that constitutes pixel section 1604, is connected with the pixel section 1604 of vertical direction according to the mode every.Thus, the pixel section 1904 of the odd column in the odd-numbered line and the pixel section 1904 of the even column in the even number line are connected with common electrode (Strg0) 1909, and all other pixel section 1904 is connected with common electrode (Strg1) 1910.
Figure 13 is the structural drawing of the liquid crystal indicator of expression the 3rd embodiment of the present invention.Liquid crystal indicator shown in Figure 13 is except adopting the above-mentioned liquid crystal panel 1901 as liquid crystal panel, and other structure is identical with liquid crystal indicator shown in Figure 10.
According to Figure 14 the action of the liquid crystal indicator of present embodiment is described below.
In the liquid crystal indicator of present embodiment, identical with the 2nd embodiment, become selection voltage (Vgon) with the voltage G (2) of gate line 1902 and walk abreast mutually, export to drain line 1903 according to the video data of the 2nd pixel of going and drain voltage Vd+, the Vd-that AC signal 904 is selected.Thus, be applied with drain voltage Vd+ or Vd-and reference voltage on each pixel section 1904 in the 2nd row.After between 1 departure date, voltage G (3) becomes selection voltage Vgon if voltage G (2) becomes non-selection voltage Vgoff, then the thin film transistor (TFT) 1905 in each pixel section 1904 of the 3rd row is in conducting state, parallel mutually therewith, export to drain line 1903 according to the video data of the 3rd each pixel section of going and the tone voltage that AC signal 904 draws.In the manner described above, between per 1 departure date, carry out identical action repeatedly,, drive whole pixel section 1904 in 1 image duration.
Such as, during voltage G (2) becomes selection voltage Vgon, in the pixel section 1904 of the 2nd odd column of going, as shown in figure 14, can produce the potential difference (PD) of positive polarity, in the pixel section 19041904 of the 2nd even column of going, can produce the potential difference (PD) of negative polarity.That is to say the reversal of poles of the every row of current potential official post that produced in the pixel section 1904 of every row.In addition, each common electrode (Strg0 of person who lives in exile, Strg1) electric current in 1909,1910 is by flowing in the respective wire of the electric current of each pixel in the zone that constitutes pixel section 1904, thereby becomes the electric current of the n/2 pixel in the conductor area outside the zone that constitutes pixel section 1904.Thus, identical with the 2nd embodiment, can make liquid crystal applied voltages keep stable.
For above-mentioned reasons, in the liquid crystal indicator of present embodiment, compare, can reduce the variation of the picture quality that the variation because of the voltage of common electrode causes with existing example.In addition,, still can obtain to prevent the effect of glimmering, compare with existing example like this, can reduce power consumption even under the situation that the frequency values of reference voltage reduces.
As mentioned above,, can not increase flicker level, and can reduce the electric voltage frequency value that puts on the common electrode, can reduce the power consumption of liquid crystal indicator according to the present invention.In addition, electric current can not concentrate on common electrode, can reduce the variation of image quality like this.
Claims (15)
1. liquid crystal panel, it has 2 substrates being oppositely arranged, is filled in the liquid crystal between above-mentioned 2 substrates, it is characterized in that:
This liquid crystal panel has and is formed on the aforesaid substrate and the corresponding M * N of a pixel pixel section, many drain lines, many gate lines, 2 opposite electrode lines capable N of M row;
Above-mentioned each pixel section comprises:
Thin film transistor (TFT), this thin film transistor (TFT) have the gate electrode that is connected with any 1 above-mentioned gate line, the drain electrode, the source electrode that are connected with any 1 above-mentioned drain line;
Pixel capacitors, this pixel capacitors is connected with the source electrode of above-mentioned thin film transistor (TFT);
Opposite electrode, this opposite electrode is relative with above-mentioned pixel capacitors, and above-mentioned liquid crystal is applied electric field, and the transmitance of the above-mentioned liquid crystal in the corresponding pixel is changed;
Above-mentioned opposite electrode is divided into 2 groups, and it is connected respectively with above-mentioned 2 opposite electrode lines in each group.
2. liquid crystal panel according to claim 1 is characterized in that:
Above-mentioned opposite electrode is relative with above-mentioned pixel capacitors, forms the electric capacity of keeping above-mentioned electric field;
With thin film transistor (TFT) that above-mentioned every gate line is connected in, the quantity of opposite electrode that is connected with the identical opposed electrode wires and the thin film transistor (TFT) that is connected with paired pixel capacitors is about N/2.
3. liquid crystal panel according to claim 1 is characterized in that:
Above-mentioned every drain line be connected with drain electrode in the corresponding thin film transistor (TFT) of every row;
Opposite electrode line in above-mentioned 2 opposite electrode lines be connected with the corresponding opposite electrode of the thin film transistor (TFT) of odd-numbered line;
Another root opposite electrode be connected with the corresponding opposite electrode of the thin film transistor (TFT) of even number line;
Even number in above-mentioned every capable gate line and the every row or the thin film transistor (TFT) in the odd column are connected, perhaps with above-mentioned thin film transistor (TFT) and with 1 row adjacent with above-mentioned every row in odd number or the thin film transistor (TFT) of even column be connected.
4. liquid crystal panel according to claim 2 is characterized in that:
Above-mentioned every drain line be connected with drain electrode in the corresponding thin film transistor (TFT) of every row;
Opposite electrode line in above-mentioned 2 opposite electrode lines be connected with the corresponding opposite electrode of thin film transistor (TFT) in the odd-numbered line;
Another root opposite electrode line be connected with the corresponding opposite electrode of the thin film transistor (TFT) of even number line;
Even number in above-mentioned every gate line and the every row or the thin film transistor (TFT) in the odd column are connected, perhaps with this thin film transistor (TFT) and with 1 row adjacent with above-mentioned every row in odd number or the thin film transistor (TFT) of even column be connected.
5. liquid crystal panel according to claim 1 is characterized in that:
Above-mentioned every drain line is connected with drain electrode with the corresponding thin film transistor (TFT) of every row;
Above-mentioned every gate line is connected with thin film transistor (TFT) in every row;
Opposite electrode line jointly with odd-numbered line in odd number or the corresponding opposite electrode of thin film transistor (TFT) of even number in even column and the even number line or odd column be connected;
Another root opposite electrode line jointly with odd-numbered line in even number or the corresponding opposite electrode of thin film transistor (TFT) of odd number in odd column and the even number line or even column be connected.
6. liquid crystal panel according to claim 2 is characterized in that:
Above-mentioned every drain line is connected with drain electrode with the corresponding thin film transistor (TFT) of every row;
Above-mentioned every gate line is connected with thin film transistor (TFT) in every row;
Opposite electrode common with and the odd number of odd-numbered line or even column in, and the even number of even number line or the corresponding opposite electrode of the thin film transistor (TFT) in the odd column connect;
Another opposite electrode line jointly with odd-numbered line in even number or the corresponding opposite electrode of thin film transistor (TFT) of odd number in odd column and the even number line or even column be connected.
7. liquid crystal panel according to claim 3 is characterized in that:
Above-mentioned 2 opposite electrode lines are made of the following many leads that are parallel to each other, this lead on aforesaid substrate vertically or vergence direction extend;
With thin film transistor (TFT) that above-mentioned every gate line is connected in, be 1 with the quantity of the corresponding thin film transistor (TFT) of opposite electrode that is connected with identical above-mentioned lead.
8. liquid crystal panel according to claim 4 is characterized in that:
Above-mentioned 2 opposite electrode lines are made of the following many leads that are parallel to each other, this lead on aforesaid substrate vertically or vergence direction extend;
With thin film transistor (TFT) that above-mentioned every gate line is connected in, be 1 with the quantity of the corresponding thin film transistor (TFT) of opposite electrode that is connected with identical above-mentioned lead.
9. liquid crystal panel according to claim 5 is characterized in that:
Above-mentioned 2 opposite electrode lines are made of the following many leads that are parallel to each other, this lead on aforesaid substrate vertically or vergence direction extend;
With thin film transistor (TFT) that above-mentioned every gate line is connected in, be 1 with the quantity of the corresponding thin film transistor (TFT) of opposite electrode that is connected with identical above-mentioned lead.
10. liquid crystal panel according to claim 6 is characterized in that:
Above-mentioned 2 opposite electrode lines are made of the following many leads that are parallel to each other, this lead on aforesaid substrate vertically or vergence direction extend;
With thin film transistor (TFT) that above-mentioned every gate line is connected in, be 1 with the quantity of the corresponding thin film transistor (TFT) of opposite electrode that is connected with identical above-mentioned lead.
11. a liquid crystal indicator is characterized in that, comprising:
The described liquid crystal panel of claim 1;
Liquid-crystal controller, this liquid-crystal controller obtains video data and synchronizing signal, and according to video data that is obtained and synchronizing signal, formation can be shown in the image of the above-mentioned video data of expression liquid crystal display data and the liquid crystal synchronizing signal on the above-mentioned liquid crystal panel;
Scanning voltage forms mechanism, and this scanning voltage forms mechanism according to above-mentioned liquid crystal synchronizing signal, will select voltage or non-selection voltage to put on the above-mentioned gate line;
Reference voltage forms mechanism, this reference voltage forms mechanism according to above-mentioned liquid crystal synchronizing signal, on above-mentioned 2 opposite electrodes, apply respectively polarity mutually different have decide the reference voltage of level, and the cycle according to the rules makes the reversal of poles of these 2 reference voltages;
Tone voltage forms mechanism, and this tone voltage forms mechanism according to above-mentioned liquid crystal synchronizing signal, forms the tone voltage that obtains according to above-mentioned liquid crystal display data and said reference voltage, and this tone voltage is applied on the above-mentioned drain line.
12. a liquid crystal indicator is characterized in that, comprising:
The described liquid crystal panel of claim 2;
Liquid-crystal controller, this liquid-crystal controller obtains video data and synchronizing signal, and according to video data that is obtained and synchronizing signal, formation can be shown in the image of the above-mentioned video data of expression liquid crystal display data and the liquid crystal synchronizing signal on the above-mentioned liquid crystal panel;
Scanning voltage forms mechanism, and this scanning voltage forms mechanism according to above-mentioned liquid crystal synchronizing signal, will select voltage or non-selection voltage to put on the above-mentioned gate line;
Reference voltage forms mechanism, and this reference voltage forms mechanism according to above-mentioned liquid crystal synchronizing signal, applies reference voltage on above-mentioned 2 opposite electrodes;
Tone voltage forms mechanism, and this tone voltage forms mechanism according to above-mentioned liquid crystal synchronizing signal, forms the tone voltage that obtains according to above-mentioned liquid crystal display data and said reference voltage, and this tone voltage is applied on the above-mentioned drain line.
13. liquid crystal indicator according to claim 11 is characterized in that:
Said reference voltage forms mechanism during 1 frame whenever above-mentioned liquid crystal display data shows, makes the reversal of poles of said reference voltage;
Above-mentioned tone voltage forms mechanism during 1 row whenever above-mentioned video data shows, forms above-mentioned tone voltage according to the different reference voltage of polarity.
14. the liquid crystal indicator according to shown in the claim 11 is characterized in that:
Above-mentioned liquid-crystal controller is according to the connection status of the above-mentioned thin film transistor (TFT) in the above-mentioned liquid crystal panel and gate line and drain line, by capable replacement forms above-mentioned liquid crystal display data to the above-mentioned video data that obtains.
15. liquid crystal indicator according to claim 12 is characterized in that:
Above-mentioned liquid-crystal controller is according to the connection status of the above-mentioned thin film transistor (TFT) in the above-mentioned liquid crystal panel and gate line and drain line, by capable replacement forms above-mentioned liquid crystal display data to the above-mentioned video data that obtains
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP279234/96 | 1996-10-22 | ||
| JP8279234A JPH10124010A (en) | 1996-10-22 | 1996-10-22 | Liquid crystal panel and liquid crystal display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1184261A true CN1184261A (en) | 1998-06-10 |
Family
ID=17608313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97126289A Pending CN1184261A (en) | 1996-10-22 | 1997-10-22 | Liquid crystal panel and liquid crystal display device |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0838801A1 (en) |
| JP (1) | JPH10124010A (en) |
| KR (1) | KR100322822B1 (en) |
| CN (1) | CN1184261A (en) |
| TW (1) | TW363179B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1320399C (en) * | 2003-06-27 | 2007-06-06 | Lg.菲利浦Lcd株式会社 | Liquid crystal display device and method for driving the same |
| CN100338502C (en) * | 2003-05-28 | 2007-09-19 | 富士施乐株式会社 | Image display device |
| CN100356439C (en) * | 2003-09-26 | 2007-12-19 | 精工爱普生株式会社 | Display driver, electro-optical device, and method of driving electro-optical device |
| CN1912722B (en) * | 1999-12-24 | 2012-07-04 | 三洋电机株式会社 | Display apparatus |
| CN103293732A (en) * | 2013-05-31 | 2013-09-11 | 京东方科技集团股份有限公司 | Liquid crystal display panel driving method and liquid crystal display panel |
| CN103399440A (en) * | 2013-08-08 | 2013-11-20 | 京东方科技集团股份有限公司 | Array substrate, display device and drive method |
| TWI710835B (en) * | 2018-11-12 | 2020-11-21 | 奇景光電股份有限公司 | Liquid crystal display |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2161113B1 (en) * | 1998-09-07 | 2002-08-01 | Daimler Chrysler Aerospace Air | LASER WELDING MACHINE FOR WELDING PROFILES ON LARGE STRUCTURAL COMPONENTS. |
| TW521241B (en) | 1999-03-16 | 2003-02-21 | Sony Corp | Liquid crystal display apparatus, its driving method, and liquid crystal display system |
| JP2001282205A (en) * | 2000-03-31 | 2001-10-12 | Matsushita Electric Ind Co Ltd | Active matrix type liquid crystal display device and method for driving the same |
| JP4894081B2 (en) * | 2000-06-14 | 2012-03-07 | ソニー株式会社 | Display device and driving method thereof |
| KR100951350B1 (en) * | 2003-04-17 | 2010-04-08 | 삼성전자주식회사 | Liquid crystal display |
| WO2004104978A1 (en) * | 2003-05-22 | 2004-12-02 | Koninklijke Philips Electronics N.V. | Electrophoretic display device and driving method |
| KR101272336B1 (en) * | 2005-10-20 | 2013-06-07 | 삼성디스플레이 주식회사 | Flat panel display |
| US9165518B2 (en) | 2011-08-08 | 2015-10-20 | Samsung Display Co., Ltd. | Display device and driving method thereof |
| US9019188B2 (en) | 2011-08-08 | 2015-04-28 | Samsung Display Co., Ltd. | Display device for varying different scan ratios for displaying moving and still images and a driving method thereof |
| US9299301B2 (en) | 2011-11-04 | 2016-03-29 | Samsung Display Co., Ltd. | Display device and method for driving the display device |
| US9208736B2 (en) | 2011-11-28 | 2015-12-08 | Samsung Display Co., Ltd. | Display device and driving method thereof |
| US9129572B2 (en) | 2012-02-21 | 2015-09-08 | Samsung Display Co., Ltd. | Display device and related method |
| KR102436065B1 (en) * | 2017-09-14 | 2022-08-23 | 엘지디스플레이 주식회사 | Display device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63260375A (en) * | 1987-04-17 | 1988-10-27 | Mitsubishi Electric Corp | Geometrical distortion correcting method for matrix type television receiver |
| US5151689A (en) * | 1988-04-25 | 1992-09-29 | Hitachi, Ltd. | Display device with matrix-arranged pixels having reduced number of vertical signal lines |
| JPH0467091A (en) * | 1990-07-09 | 1992-03-03 | Internatl Business Mach Corp <Ibm> | Liquid crystal display unit |
| JPH05210089A (en) * | 1992-01-31 | 1993-08-20 | Sharp Corp | Active matrix display device and driving method thereof |
| JPH07318901A (en) * | 1994-05-30 | 1995-12-08 | Kyocera Corp | Active matrix liquid crystal display device and its driving method |
| FR2722603B1 (en) * | 1994-07-12 | 1996-09-27 | Sagem | LIQUID CRYSTAL, ACTIVE MATRIX AND FRACTIONAL COUNTER ELECTRODE DISPLAY DEVICE |
-
1996
- 1996-10-22 JP JP8279234A patent/JPH10124010A/en active Pending
-
1997
- 1997-10-20 KR KR1019970053727A patent/KR100322822B1/en not_active IP Right Cessation
- 1997-10-20 TW TW086115454A patent/TW363179B/en active
- 1997-10-21 EP EP97118248A patent/EP0838801A1/en not_active Withdrawn
- 1997-10-22 CN CN97126289A patent/CN1184261A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1912722B (en) * | 1999-12-24 | 2012-07-04 | 三洋电机株式会社 | Display apparatus |
| CN100338502C (en) * | 2003-05-28 | 2007-09-19 | 富士施乐株式会社 | Image display device |
| CN1320399C (en) * | 2003-06-27 | 2007-06-06 | Lg.菲利浦Lcd株式会社 | Liquid crystal display device and method for driving the same |
| US7319448B2 (en) | 2003-06-27 | 2008-01-15 | Lg.Philips Lcd Co., Ltd. | Liquid crystal display device and method for driving the same |
| CN100356439C (en) * | 2003-09-26 | 2007-12-19 | 精工爱普生株式会社 | Display driver, electro-optical device, and method of driving electro-optical device |
| CN103293732A (en) * | 2013-05-31 | 2013-09-11 | 京东方科技集团股份有限公司 | Liquid crystal display panel driving method and liquid crystal display panel |
| WO2014190627A1 (en) * | 2013-05-31 | 2014-12-04 | 京东方科技集团股份有限公司 | Drive method for liquid crystal panel, and liquid crystal panel |
| CN103293732B (en) * | 2013-05-31 | 2015-11-25 | 京东方科技集团股份有限公司 | Liquid crystal panel drive method and liquid crystal panel |
| CN103399440A (en) * | 2013-08-08 | 2013-11-20 | 京东方科技集团股份有限公司 | Array substrate, display device and drive method |
| WO2015018168A1 (en) * | 2013-08-08 | 2015-02-12 | 京东方科技集团股份有限公司 | Array substrate, display device and method for driving display device |
| TWI710835B (en) * | 2018-11-12 | 2020-11-21 | 奇景光電股份有限公司 | Liquid crystal display |
| US10891910B2 (en) | 2018-11-12 | 2021-01-12 | Himax Technologies Limited | Liquid crystal display device |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0838801A1 (en) | 1998-04-29 |
| KR19980032980A (en) | 1998-07-25 |
| JPH10124010A (en) | 1998-05-15 |
| KR100322822B1 (en) | 2002-06-20 |
| TW363179B (en) | 1999-07-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1184261A (en) | Liquid crystal panel and liquid crystal display device | |
| CN1941061A (en) | Liquid crystal display device and method for driving of the same | |
| CN1261806C (en) | Liquid-crystal display device and driving method thereof | |
| CN1244899C (en) | Display device and its driving method and portable terminal device | |
| CN1272662C (en) | Liquid crystal display, device for driving said display and method for producing grey scale voltage | |
| CN108847194A (en) | Display device and driving method | |
| CN1265336C (en) | Image display device and display drive method | |
| CN1269096C (en) | Liquid crystal display device and method for driving liquid crystal display device | |
| CN1530723A (en) | Displaying device and driving method thereof | |
| CN1650226A (en) | Liquid crystal display and driving method thereof | |
| CN1804988A (en) | Liquid crystal driving device, liquid crystal display device, and liquid crystal driving method | |
| CN107331355A (en) | A kind of backlight module, its control method and display device | |
| CN1488081A (en) | Liquid crystal display device | |
| CN1619635A (en) | Liquid crystal display device, driving circuit for the same and driving method for the same | |
| CN1819005A (en) | System and method for driving an LCD | |
| CN1753072A (en) | Liquid crystal display device and method of driving the same | |
| CN1941062A (en) | Liquid crystal display having improved image quality | |
| CN1848232A (en) | Semiconductor integrated circuit for driving a liquid crystal display | |
| CN1795487A (en) | Display system with frame buffer and power saving sequence | |
| CN1758303A (en) | Electro-optical device, method of driving electro-optical device, and electronic apparatus | |
| CN1924651A (en) | Driving method for display apparatus | |
| CN101303840A (en) | Liquid crystal display device and driving method thereof | |
| CN1652189A (en) | Liquid crystal display and driving method thereof | |
| CN1991457A (en) | Liquid crystal display and method for driving the same | |
| CN101046944A (en) | Liquid crystal display device, driving control circuit and driving method used in same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |