JPH064045A - Driving method for liquid crystal display device - Google Patents
Driving method for liquid crystal display deviceInfo
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- JPH064045A JPH064045A JP16073792A JP16073792A JPH064045A JP H064045 A JPH064045 A JP H064045A JP 16073792 A JP16073792 A JP 16073792A JP 16073792 A JP16073792 A JP 16073792A JP H064045 A JPH064045 A JP H064045A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- display device
- crystal display
- image signal
- row
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- Liquid Crystal Display Device Control (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、ラップトップコンピュ
−タ等に用いられる液晶表示装置の駆動方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of driving a liquid crystal display device used in laptop computers and the like.
【0002】[0002]
【従来の技術】近年、小型テレビ受像機やラップトップ
コンピュータなどに薄膜トランジスタ(以下TFTと略
す)等を用いたアクティブマトリックス型の液晶表示装
置(以下AM−LCDと略す)が使用されている。2. Description of the Related Art In recent years, an active matrix type liquid crystal display device (hereinafter abbreviated as AM-LCD) using a thin film transistor (hereinafter abbreviated as TFT) or the like has been used in a small television receiver, a laptop computer or the like.
【0003】以下従来の液晶表示装置の駆動方法につい
て説明する。図2はTFTを用いたAM−LCDの要部
の回路図である。図2において、1は画素、2はTF
T、3は蓄積容量、4は画素電極、5は対向電極、6は
液晶、7は行配線(横方向配線)、8は列配線(縦方向
配線)、9は共通配線、10、11、12は駆動回路で
ある。従来のAM−LCDでは、点線ABCDで囲まれ
た表示部に多数の画素1をマトリクス状に繰り返して有
している。各画素1にはTFT2が作り込まれており、
TFT2のゲ−ト電極は行配線(横方向配線)7に、ソ
−ス電極は列配線(縦方向配線)8に、ドレイン電極は
画素信号保持用の蓄積容量3と画素電極4に接続されて
いる。蓄積容量3の他端は共通配線9に接続されてい
る。液晶6は対向電極5と画素電極4の間に挟まれて駆
動される。なおこれらの画素1の構成要素のうち、対向
電極5と液晶6以外はアクティブマトリクスアレイ基板
上に作り込まれている。また対向電極5は表示部全体に
わたる広い1枚の電極で構成され、対向基板上に作り込
まれている。なお図2では配線の本数が少ないが、TV
表示等を行う場合には行配線7と列配線8の数は数百本
を越すものとなる。点線EFGHで囲まれた部分はアク
ティブマトリクスアレイ基板と対向基板および液晶を主
構成要素とする表示パネルであり、この表示パネルの各
配線に駆動回路10、11、12を接続することにより
液晶表示装置が構成される。A conventional method of driving a liquid crystal display device will be described below. FIG. 2 is a circuit diagram of a main part of an AM-LCD using a TFT. In FIG. 2, 1 is a pixel and 2 is a TF
T, 3 is a storage capacitor, 4 is a pixel electrode, 5 is a counter electrode, 6 is a liquid crystal, 7 is a row wiring (horizontal wiring), 8 is a column wiring (vertical wiring), 9 is a common wiring 10, 11, Reference numeral 12 is a drive circuit. In a conventional AM-LCD, a large number of pixels 1 are repeatedly arranged in a matrix in a display area surrounded by a dotted line ABCD. Each pixel 1 has a TFT 2 built in,
The gate electrode of the TFT 2 is connected to the row wiring (horizontal wiring) 7, the source electrode is connected to the column wiring (vertical wiring) 8, and the drain electrode is connected to the storage capacitor 3 for holding pixel signals and the pixel electrode 4. ing. The other end of the storage capacitor 3 is connected to the common wiring 9. The liquid crystal 6 is driven by being sandwiched between the counter electrode 5 and the pixel electrode 4. Of the constituent elements of the pixel 1, the counter electrode 5 and the liquid crystal 6 are formed on the active matrix array substrate. The counter electrode 5 is composed of one wide electrode over the entire display portion and is formed on the counter substrate. In addition, although the number of wires is small in FIG.
In the case of displaying, the number of row wirings 7 and column wirings 8 exceeds several hundreds. A portion surrounded by a dotted line EFGH is a display panel whose main constituent elements are an active matrix array substrate, a counter substrate and a liquid crystal. A liquid crystal display device is formed by connecting drive circuits 10, 11 and 12 to each wiring of this display panel. Is configured.
【0004】次に図2に示す液晶表示装置の駆動方法に
ついて説明する。図3(a)は従来の液晶表示装置の駆
動方法を説明する駆動波形図、図3(b)は同液晶表示
装置における画素の光応答を説明する図である。これら
の図では960本の行配線(横方向配線)7がある場合
について示している。まず駆動波形について図3(a)
を参照しながら説明する。なお説明を簡単にするため、
画面に一様な画像信号を与えた場合を示している。Vs
yは列配線(縦方向配線)8のうちの任意(y本目)の
1本に印加される信号、Vc は対向電極5の電位であ
る。Vg1からVg960は行配線7に順次印加される信号で
あり、パルスが印加されたタイミングでTFT2がON
状態となり信号Vsyが画素電極4に書き込まれ、画素
電極4と対向電極5の電位差で液晶6が駆動される。9
60本の行配線7が全て選択(パルスを印加)され、液
晶表示装置の全ての画素1に対応する1画面分の画像信
号を全画素電極4に書き込むのに要する時間をTfとす
る。対向電極5を電位基準とみなしたときの画像信号が
Vsig であり、時間Tf毎に極性を反転させ液晶6を交
流駆動する。図3(b)はこのときのy本目の列配線8
に接続された一部の画素1の光応答例(TNモードでノ
−マリィ−ブラックの表示モ−ドのもの)であり、47
9本目の行配線7に接続された画素電極4から483本
目の行配線7に接続された画素電極4までの光応答をL
479からL483で示している。光応答はTfと2×Tfの
2つの周期で明るさが変化する。すなわちVsig の極性
により極大値が異なる(MAX1とMAX2)ためTf
の2倍の周期の明暗変化成分も現れる。Next, a method of driving the liquid crystal display device shown in FIG. 2 will be described. FIG. 3A is a drive waveform diagram for explaining a driving method of a conventional liquid crystal display device, and FIG. 3B is a diagram for explaining optical response of pixels in the liquid crystal display device. These figures show the case where there are 960 row wirings (horizontal wirings) 7. First, regarding the drive waveform, FIG.
Will be described with reference to. To simplify the explanation,
The case where a uniform image signal is given to the screen is shown. Vs
y is a signal applied to any one (y-th) column wiring (vertical wiring) 8, and Vc is the potential of the counter electrode 5. Vg1 to Vg960 are signals sequentially applied to the row wiring 7, and the TFT 2 is turned on at the timing when the pulse is applied.
Then, the signal Vsy is written in the pixel electrode 4, and the liquid crystal 6 is driven by the potential difference between the pixel electrode 4 and the counter electrode 5. 9
Let Tf be the time required to write all the image signals of one screen corresponding to all the pixels 1 of the liquid crystal display device to all the pixel electrodes 4 when all the 60 row wirings 7 are selected (pulses are applied). The image signal when the counter electrode 5 is regarded as the potential reference is Vsig, and the polarity is inverted every time Tf, and the liquid crystal 6 is AC driven. FIG. 3B shows the y-th column wiring 8 at this time.
47 is an example of the optical response of a part of the pixels 1 connected to (in a normally black display mode in TN mode), 47
The optical response from the pixel electrode 4 connected to the ninth row wiring 7 to the pixel electrode 4 connected to the 483th row wiring 7 is L
479 to L483. The brightness of the optical response changes in two cycles of Tf and 2 × Tf. That is, since the maximum value differs depending on the polarity of Vsig (MAX1 and MAX2), Tf
A bright / dark change component with a cycle twice that of
【0005】[0005]
【発明が解決しようとする課題】しかしながら上記の従
来の構成では、図3(b)に示すように、近接した行配
線に接続された画素は殆ど同じタイミングで光応答の明
暗が変化し、Tfの設定やパネル性能にもよるがこの明
暗がフリッカとして認識されるという課題を有していた
(フラットパネルディスプレイ1990 日経BP社刊
1989年11月1日発行 P.109 参照)。特
にフリッカはNTSCのTV信号をそのまま表示に使う
場合などでは顕著に現れる。このフリッカを低減するた
め対向電極を電位基準とみなしたときの画像信号Vsig
を行配線1本毎に反転させる方法(図3でMAX1とM
AX2の差を小さくして2×Tf周期のフリッカを低減
する方法)も知られているが、Tfが長くなるとやはり
Tf周期のフリッカが目立つてくる。However, in the above-mentioned conventional structure, as shown in FIG. 3B, the pixels connected to the adjacent row wirings change the brightness of the optical response at almost the same timing, and the Tf changes. However, there was a problem that this light and darkness was recognized as flicker depending on the setting of the panel and the panel performance (see Flat Panel Display 1990, Nikkei BP, November 1, 1989, p. 109). In particular, flicker appears remarkably when the NTSC TV signal is used for display as it is. In order to reduce this flicker, the image signal Vsig when the counter electrode is regarded as the potential reference
For each row wiring (MAX1 and M in FIG. 3)
A method of reducing the difference of AX2 to reduce the flicker of 2 × Tf cycle) is also known, but the flicker of the Tf cycle becomes conspicuous when Tf becomes long.
【0006】本発明は上記の従来の課題を解決するもの
で、フリッカを視認しにくくする液晶表示装置の駆動方
法を提供するものである。The present invention solves the above-mentioned conventional problems, and provides a driving method of a liquid crystal display device which makes it difficult to visually recognize flicker.
【0007】[0007]
【課題を解決するための手段】この目的を達成するため
に本発明の液晶表示装置の駆動方法は、行配線をL本有
する液晶表示装置の全画素に対応する1枚分の画像信号
を全画素電極に書き込む時間Tfあたり、対向電極の電
位を電位基準とみなしたときの画像信号の極性を3以上
(L÷2)以下の回数(M回)反転させる構成を有して
いる。In order to achieve this object, a method of driving a liquid crystal display device according to the present invention includes a method for driving all image signals corresponding to all pixels of a liquid crystal display device having L row wirings. The configuration is such that the polarity of the image signal when the potential of the counter electrode is regarded as the potential reference is inverted 3 times or more (L / 2) or less (M times) per time Tf of writing to the pixel electrode.
【0008】さらには、液晶表示装置の行配線を画面の
一方の端から他方の端に向かって整数nを使って順番に
番号づけし、整数nを回数Mで割ったときの余りをkと
したとき、共通のkをもつ複数の行配線を1つのグル−
プ(行配線群G(k))とし、任意の行配線群G(k1)に
接続された画素に連続して画像信号を書き込み、その後
画像信号の極性を反転し、k1と値の差が(M÷2)±
1の範囲で異なるk2をもつ行配線群G(k2)に接続さ
れた画素に画像信号を書き込む構成を有している。Further, the row wirings of the liquid crystal display device are sequentially numbered from one end of the screen to the other end using the integer n, and the remainder when the integer n is divided by the number M is k. Then, a plurality of row wirings having a common k are connected to one group.
Group (row wiring group G (k)), the image signal is continuously written to the pixels connected to an arbitrary row wiring group G (k1), and then the polarity of the image signal is inverted, and the difference between k1 and the value is (M ÷ 2) ±
The image signal is written in the pixels connected to the row wiring group G (k2) having different k2 in the range of 1.
【0009】[0009]
【作用】この構成によって、近接した行配線に接続され
た画素電極の光応答の明暗の変化のタイミングが分散さ
れ(最悪でも0.5×Tf程度タイミングがずれる)、
フリッカが認識されにくくなり、画像品質が向上する。
加えてMを奇数回に設定すれば画像信号の極性反転が容
易になる。With this configuration, the timing of the change in the brightness of the light response of the pixel electrodes connected to the adjacent row wirings is dispersed (at worst, the timing is shifted by about 0.5 × Tf),
Flicker is less likely to be recognized, and image quality is improved.
In addition, if M is set to an odd number of times, it becomes easy to reverse the polarity of the image signal.
【0010】[0010]
【実施例】以下本発明の一実施例における液晶表示装置
の駆動方法ついて、図面を参照しながら説明する。図1
(a)は本発明の一実施例における液晶表示装置の駆動
方法を説明する駆動波形図、図1(b)は同液晶表示装
置における画素の光応答を説明する図である。図1
(a)、(b)はいずれも従来例と同様図2の構成の液
晶表示装置で960本の行配線(横方向配線)7を有す
る場合について示しており、説明を簡単にするために画
面に一様な画像信号を与えたものである。Vsyは列配
線8のうちの任意(y本目)の1本に印加される信号、
Vc は対向電極5の電位である。Vg1からVg960は行配
線7に順次印加される信号であり、パルスが印加された
タイミングでTFT2がON状態となり信号Vsyが画
素電極4に書き込まれ画素電極4と対向電極5の電位差
で液晶6が駆動される。なお960本の行配線7が全て
選択(パルスを印加)され液晶表示装置の全ての画素1
に対応する1枚分の画像信号を全画素電極4に書き込む
時間はTfであり、対向電極5を電位基準とみなしたと
きの画像信号はVsig である。本実施例では960本の
行配線7を画面の上端から順に1から960までの番号
を付け、この番号を5で割った余りで5つの配線群に分
けている。それぞれの配線群をG(1),G(2),G
(3),G(4),G(5)と名付けると、G(1)→G(4)→
G(2)→G(0)→G(3)の配線群の順番(G(k)のkの
値を(5÷2)±1の範囲内で順次変化させた順番)で
パルスが印加され画像信号が書き込まれる。すなわちV
g1→Vg6→・・→Vg481→・・→Vg956の順でG(1)に
属する192本の行配線7にパルスが印加された後、G
(4)に属する192本の行配線7にパルスが印加され
る。このとき行配線群が変わる毎にVsig の極性を反転
している。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A method of driving a liquid crystal display device according to an embodiment of the present invention will be described below with reference to the drawings. Figure 1
FIG. 1A is a drive waveform diagram illustrating a driving method of a liquid crystal display device according to an embodiment of the present invention, and FIG. 1B is a diagram illustrating a photoresponse of a pixel in the liquid crystal display device. Figure 1
Both (a) and (b) show the case where the liquid crystal display device having the configuration of FIG. 2 has 960 row wirings (horizontal wirings) 7 as in the conventional example. Is given a uniform image signal. Vsy is a signal applied to an arbitrary (y-th) one of the column wirings 8,
Vc is the potential of the counter electrode 5. Vg1 to Vg960 are signals sequentially applied to the row wiring 7. The TFT 2 is turned on at the timing when the pulse is applied, the signal Vsy is written in the pixel electrode 4, and the liquid crystal 6 is generated by the potential difference between the pixel electrode 4 and the counter electrode 5. Driven. All 960 row wirings 7 are selected (pulses are applied) and all pixels 1 of the liquid crystal display device are selected.
The time for writing the image signal for one sheet corresponding to the above to all the pixel electrodes 4 is Tf, and the image signal when the counter electrode 5 is regarded as the potential reference is Vsig. In this embodiment, 960 row wirings 7 are numbered from 1 to 960 in order from the upper end of the screen, and the number is divided by 5 to divide into 5 wiring groups. Connect each wiring group to G (1), G (2), G
If you name them (3), G (4), and G (5), G (1) → G (4) →
Pulses are applied in the order of the wiring group G (2) → G (0) → G (3) (the order in which the value of k in G (k) is sequentially changed within the range of (5 ÷ 2) ± 1). Then, the image signal is written. Ie V
After a pulse is applied to 192 row wirings 7 belonging to G (1) in the order of g1 → Vg6 → ・ ・ → Vg481 → ・ ・ → Vg956, G
A pulse is applied to the 192 row wirings 7 belonging to (4). At this time, the polarity of Vsig is inverted every time the row wiring group changes.
【0011】また図1には記載しなかったが、対向電極
5を電位基準とみなしたときの画像信号の極性を反転さ
せる際、画像信号の電位変化を促す方向に対向電極5の
電位を変化させることも行っている。さらに極性を反転
させる回数Mを奇数に設定することにより、画像信号の
極性切り替えのタイミングが均等化され画像の均一性が
増す。Although not shown in FIG. 1, when inverting the polarity of the image signal when the counter electrode 5 is regarded as a potential reference, the potential of the counter electrode 5 is changed in a direction in which the potential change of the image signal is promoted. We are also doing. Further, by setting the number M of times of inverting the polarity to an odd number, the timing of switching the polarity of the image signal is equalized and the uniformity of the image is increased.
【0012】次に図1(a)に示す駆動方法においてy
本目の列配線8に接続された一部の画素1の光応答(ノ
−マリィ−ブラックの表示モ−ドのもの)について、図
1(b)を参照しながら説明する。図1(b)では、4
79本目の行配線7に接続された画素電極4から483
本目の行配線7に接続された画素電極4の光応答をL47
9からL483で示している。図1(b)に示すように、最
近接の画素1はほぼ(2÷5)×Tfのタイミングのず
れで光応答の明暗が変化する。また近接する5本の行配
線7に接続された画素1の光応答の明暗のタイミングは
(1÷5)×Tfづつずれた形になりフリッカが非常に
視認しにくくなる。すなわちTfの周期のフリッカも目
立たなくなる。また逆にその分Tfを長く設定できるよ
うになり、、画像信号の書き込みも楽になり、回路設計
およびLCDパネルの設計が容易になる。この点に関し
てはテレビ受像機よりもOA機器に利用した場合に有利
になる。また画像信号の電位変化を促す方向に対向電極
5の電位を変化させた場合、Vsyの出力ダイナミック
レンジの幅を狭くできるため消費電力が低減できる。Next, in the driving method shown in FIG.
The optical response (in normally-black display mode) of some of the pixels 1 connected to the column wiring 8 will be described with reference to FIG. In FIG. 1 (b), 4
The pixel electrodes 4 to 483 connected to the 79th row wiring 7
The light response of the pixel electrode 4 connected to the first row wiring 7 is L47.
It is shown from 9 to L483. As shown in FIG. 1B, the lightness and darkness of the optical response of the closest pixel 1 changes with a timing shift of (2/5) × Tf. Further, the light and dark timings of the light response of the pixels 1 connected to the adjacent five row wirings 7 are shifted by (1/5) × Tf, which makes the flicker very difficult to visually recognize. That is, the flicker of the period of Tf becomes inconspicuous. On the contrary, Tf can be set longer by that amount, the writing of the image signal is facilitated, and the circuit design and the LCD panel design are facilitated. In this respect, it is more advantageous when used for OA equipment than a television receiver. Further, when the potential of the counter electrode 5 is changed in a direction in which the potential change of the image signal is promoted, the width of the output dynamic range of Vsy can be narrowed, so that the power consumption can be reduced.
【0013】なお上記の実施例ではM=5で極性を反転
したが、Mを使って表現すると近接するM本の行配線7
に接続された画素1の光応答の明暗のタイミングは(1
÷M)×Tfづつずれた形になりフリッカが非常に視認
しにくくなる。In the above embodiment, the polarity was inverted when M = 5, but when expressed using M, M adjacent row wirings 7
The timing of light and dark of the optical response of the pixel 1 connected to is (1
÷ M) × Tf, and the flicker becomes very hard to see.
【0014】[0014]
【発明の効果】以上のように本発明は、行配線をL本有
する液晶表示装置の全画素に対応する1枚分の画像信号
を全画素電極に書き込む時間Tfあたり、対向電極を電
位基準とみなしたときの画像信号の極性を3以上(L÷
2)以下の回数(M回)反転させる構成を有し、近接し
た行配線に接続された画素電極の光応答の明暗の変化の
タイミングが分散され(最悪でも0.5×Tf程度タイ
ミングがずれる)、フリッカが認識されにくくなり、画
像品質を向上できる液晶表示装置の駆動方法を実現でき
るものである。さらに画像信号の極性を反転させる回数
Mを奇数に設定すすることにより、画像信号の極性反転
がいっそう容易になる。As described above, according to the present invention, the counter electrode is used as the potential reference per time Tf for writing one image signal corresponding to all pixels of the liquid crystal display device having L row wirings to all pixel electrodes. The polarity of the image signal when considered is 3 or more (L ÷
2) It has a configuration of inverting the number of times (M times) or less, and the timings of changes in brightness and darkness of the photoresponse of pixel electrodes connected to adjacent row wirings are dispersed (at worst, the timings are shifted by about 0.5 × Tf). ), Flicker is less likely to be recognized, and a driving method of a liquid crystal display device capable of improving image quality can be realized. Further, by setting the number M of times of inverting the polarity of the image signal to an odd number, it becomes easier to invert the polarity of the image signal.
【図1】(a)は本発明の一実施例における液晶表示装
置の駆動方法を説明する駆動波形図 (b)は同液晶表示装置における画素の光応答を説明す
る図FIG. 1A is a drive waveform diagram illustrating a driving method of a liquid crystal display device according to an embodiment of the present invention, and FIG. 1B is a diagram illustrating a photoresponse of a pixel in the liquid crystal display device.
【図2】TFTを用いたAM−LCDの要部の回路図FIG. 2 is a circuit diagram of a main part of an AM-LCD using a TFT.
【図3】(a)は従来の液晶表示装置の駆動方法を説明
する駆動波形図 (b)は同液晶表示装置における画素の光応答を説明す
る図FIG. 3A is a drive waveform diagram illustrating a driving method of a conventional liquid crystal display device, and FIG. 3B is a diagram illustrating optical response of pixels in the liquid crystal display device.
1 画素 4 画素電極 5 対向電極 7 行配線 Vc 対向電極の電位 Vsig 画像信号 1 pixel 4 pixel electrode 5 counter electrode 7 row wiring Vc potential of counter electrode Vsig image signal
───────────────────────────────────────────────────── フロントページの続き (72)発明者 佐野 浩 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 (72)発明者 古田 守 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Hiroshi Sano 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Inventor, Mamoru Furuta 1006 Kadoma, Kadoma City, Osaka Matsushita Electric Industrial Co., Ltd.
Claims (5)
晶表示装置において、全画素に対応する1画面分の画像
信号を全画素電極に書き込む時間Tfあたり、対向電極
の電位を電位基準とみなしたときの画像信号の極性を3
以上(L÷2)以下の回数(M回)反転させることを特
徴とする液晶表示装置の駆動方法。1. In a liquid crystal display device having L row wirings (horizontal wirings), the potential of the counter electrode is referred to as a potential per time Tf for writing an image signal for one screen corresponding to all pixels to all pixel electrodes. The polarity of the image signal when
A method for driving a liquid crystal display device, which comprises inverting the number of times (L ÷ 2) or less (M times).
であることを特徴とする請求項1記載の液晶表示装置の
駆動方法。2. The method of driving a liquid crystal display device according to claim 1, wherein the number M of times of inverting the polarity of the image signal is odd.
像信号の極性を反転させる際に画像信号の電位変化を促
す方向に対向電極の電位を電位変化させることを特徴と
する請求項1記載の液晶表示装置の駆動方法。3. The potential of the counter electrode is changed in a direction of promoting the potential change of the image signal when inverting the polarity of the image signal when the counter electrode is regarded as the potential reference. Driving method of the liquid crystal display device.
から他方の端に向かって整数nを使って順番に番号づけ
し、前記整数nを回数Mで割ったときの余りをkとした
とき、共通のkをもつ複数の行配線を1つのグル−プ
(行配線群G(k))とし、同じ行配線群G(k)に接続
された画素には連続して画像信号を書き込み、かつ前記
行配線群G(k)毎に画像信号の極性を反転させること
を特徴とする請求項1記載の液晶表示装置の駆動方法。4. The row wirings of the liquid crystal display device are sequentially numbered from one end of the screen to the other end using an integer n, and the remainder when the integer n is divided by the number M is k. Then, a plurality of row wirings having a common k are treated as one group (row wiring group G (k)), and image signals are continuously supplied to pixels connected to the same row wiring group G (k). 2. The method for driving a liquid crystal display device according to claim 1, wherein writing is performed and the polarity of the image signal is inverted for each row wiring group G (k).
素に連続して画像信号を書き込み、その後画像信号の極
性を反転し行配線群G(k2)に接続された画素に画像信
号を書き込む際にk1とk2の値の差が(M÷2)−1
から(M÷2)+1の範囲内にあることを特徴とする請
求項4記載の液晶表示装置の駆動方法。5. An image signal is continuously written to a pixel connected to an arbitrary row wiring group G (k1), and then the polarity of the image signal is inverted to form an image on a pixel connected to the row wiring group G (k2). When writing a signal, the difference between the values of k1 and k2 is (M / 2) -1
5. The method for driving a liquid crystal display device according to claim 4, wherein the driving force is in the range of (M ÷ 2) +1.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16073792A JPH064045A (en) | 1992-06-19 | 1992-06-19 | Driving method for liquid crystal display device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16073792A JPH064045A (en) | 1992-06-19 | 1992-06-19 | Driving method for liquid crystal display device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH064045A true JPH064045A (en) | 1994-01-14 |
Family
ID=15721369
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16073792A Pending JPH064045A (en) | 1992-06-19 | 1992-06-19 | Driving method for liquid crystal display device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH064045A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1260962A2 (en) * | 2001-05-14 | 2002-11-27 | Thomson Licensing S.A. | Flicker reduction by diplay polarity interleaving |
WO2003007285A3 (en) * | 2001-07-12 | 2003-11-20 | Koninkl Philips Electronics Nv | Display devices and driving method therefor |
-
1992
- 1992-06-19 JP JP16073792A patent/JPH064045A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1260962A2 (en) * | 2001-05-14 | 2002-11-27 | Thomson Licensing S.A. | Flicker reduction by diplay polarity interleaving |
EP1260962A3 (en) * | 2001-05-14 | 2007-03-28 | Thomson Licensing | Flicker reduction by display polarity interleaving |
KR100905986B1 (en) * | 2001-05-14 | 2009-07-06 | 톰슨 라이센싱 | Flicker reduction by display polarity interleaving |
WO2003007285A3 (en) * | 2001-07-12 | 2003-11-20 | Koninkl Philips Electronics Nv | Display devices and driving method therefor |
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