JPH073523B2 - LCD display panel - Google Patents
LCD display panelInfo
- Publication number
- JPH073523B2 JPH073523B2 JP61161027A JP16102786A JPH073523B2 JP H073523 B2 JPH073523 B2 JP H073523B2 JP 61161027 A JP61161027 A JP 61161027A JP 16102786 A JP16102786 A JP 16102786A JP H073523 B2 JPH073523 B2 JP H073523B2
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- liquid crystal
- display panel
- crystal display
- small
- 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.)
- Expired - Lifetime
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
- G02F1/134345—Subdivided pixels, e.g. for grey scale or redundancy
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Liquid Crystal (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal Display Device Control (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Description
【発明の詳細な説明】 〔概 要〕 多階調表示を行う液晶表示パネルにおいて急峻な電気光
学特性は濃度の制御を困難にする。そこで共通電極を細
分化しそれぞれの小電極に電位差を持たせることによっ
て、電気光学特性の傾斜を緩慢にし濃度の制御を容易に
したものである。DETAILED DESCRIPTION OF THE INVENTION [Summary] In a liquid crystal display panel that performs multi-gradation display, steep electro-optical characteristics make density control difficult. Therefore, the common electrode is subdivided so that each of the small electrodes has a potential difference, whereby the gradient of the electro-optical characteristics is made gentle and the concentration control is facilitated.
本発明は多階調表示を行うアクティブマトリクス型の液
晶表示パネルに関する。The present invention relates to an active matrix type liquid crystal display panel that performs multi-gradation display.
アクティブマトリクス型の液晶表示パネルは大容量化し
ても高いコントラストの表示が得られ、カラーフィルタ
との組合せによって画像の多色化が可能なことから、こ
れを用いた平面型カラーテレビの実用化が試みられてい
る。Since an active matrix type liquid crystal display panel can display a high contrast even if it has a large capacity, and it is possible to make an image multicolored by combining it with a color filter, it is possible to put a flat color television using this into practical use. Being tried.
しかしカラーテレビ等に用いる場合はきめの細かい多階
調表示を要求され、色彩濃度の制御が容易な液晶表示パ
ネルの開発を望まれている。However, when used in a color television or the like, fine gradation display is required, and development of a liquid crystal display panel in which color density can be easily controlled is desired.
第５図は従来の液晶表示パネルを示す断面斜視図であ
る。FIG. 5 is a sectional perspective view showing a conventional liquid crystal display panel.
図において従来のアクティブマトリクス型の液晶表示パ
ネルは、ガラス基板１と液晶層２とガラス基板３とガラ
ス基板の外側に設けた偏光板４および５で構成されてお
り、ガラス基板１に画素毎に形成されたITO等からなる
透明電極（以後駆動電極と称する）11と、アモルファス
シリコン型薄膜トランジスタ（以後TFTと称する）12
は、ポリイミド樹脂等からなる配向膜13によって覆膜さ
れている。In the figure, a conventional active matrix type liquid crystal display panel is composed of a glass substrate 1, a liquid crystal layer 2, a glass substrate 3 and polarizing plates 4 and 5 provided on the outside of the glass substrate. The formed transparent electrode (hereinafter referred to as a drive electrode) 11 made of ITO or the like, and the amorphous silicon type thin film transistor (hereinafter referred to as TFT) 12
Is covered with an alignment film 13 made of polyimide resin or the like.
なおガラス基板１には駆動電極11やTFT12の他に、走査
電極14と表示電極15とがマトリクス状に形成されてお
り、TFT12のソース側電極は駆動電極11に、ドレイン側
電極は表示電極15に、そしてゲート電極は走査電極14に
それぞれ接続されている。In addition to the drive electrode 11 and the TFT 12, the scan electrode 14 and the display electrode 15 are formed in a matrix on the glass substrate 1. The source side electrode of the TFT 12 is the drive electrode 11 and the drain side electrode is the display electrode 15. , And the gate electrode is connected to the scan electrode 14, respectively.
またガラス基板３は画素とは関係無く一様に形成され、
その表面をポリイミド樹脂等からなる配向膜32によって
被覆された、ITO等からなる透明電極（以後非駆動電極
と称する）31を具えており、駆動電極11と非駆動電極31
とは液晶層２を介して対向している。Further, the glass substrate 3 is formed uniformly regardless of the pixels,
A transparent electrode (hereinafter referred to as a non-driving electrode) 31 made of ITO or the like, the surface of which is covered with an alignment film 32 made of a polyimide resin or the like, is provided, and the driving electrode 11 and the non-driving electrode 31 are provided.
Are opposed to each other via the liquid crystal layer 2.
かかる液晶表示パネルにおいて走査電極14にパルス信号
を印加すると、その走査電極14に接続されているTFT12
が通電状態になり、映像信号で変調されたデータ電圧が
表示電極15を通して液晶層２に印加される。走査電極14
に印加しているパルス信号が消えるとTFT12は遮断状態
になるが、電荷は駆動電極11に蓄積されており１フレー
ムの間は引続きデータ電圧が液晶層２に印加される。し
たがってデータ電圧の印加時間は狭い場合でも点灯の失
敗が無く、データ電圧を変えることによって中間調の表
示も可能になる。When a pulse signal is applied to the scanning electrode 14 in such a liquid crystal display panel, the TFT 12 connected to the scanning electrode 14
Is turned on, and the data voltage modulated by the video signal is applied to the liquid crystal layer 2 through the display electrode 15. Scanning electrode 14
When the pulse signal applied to the TFT disappears, the TFT 12 is cut off, but the charge is accumulated in the drive electrode 11 and the data voltage is continuously applied to the liquid crystal layer 2 for one frame. Therefore, even if the application time of the data voltage is short, there is no failure in lighting, and a halftone display is possible by changing the data voltage.
第４図に破線で示す如く従来の液晶表示パネルにおける
電気光学特性は急峻で、データ電圧が閾値（図では約2
V）を超えると光の透過量は急速に変化する。したがっ
てデータ電圧を変えて色彩濃度を制御することが難し
く、きめの細かい多階調表示ができないという問題があ
った。As shown by the broken line in FIG. 4, the electro-optical characteristics of the conventional liquid crystal display panel are steep, and the data voltage has a threshold value (about 2% in the figure).
Above V), the amount of light transmission changes rapidly. Therefore, it is difficult to control the color density by changing the data voltage, and there is a problem that fine gradation display cannot be performed.
第１図は本発明になる液晶表示パネルを示す原理図であ
る。なお全図を通し同じ対象物は同一記号で表してい
る。FIG. 1 is a principle view showing a liquid crystal display panel according to the present invention. Note that the same object is denoted by the same symbol throughout the drawings.
上記問題点は各単位画素内において複数個の小電極61に
分割してなる非駆動電極６を、液晶層２を介して能動素
子例えばTFT12を具えた駆動電極11に対向せしめ、且つ
小電極61にそれぞれ電位差を持たせてなる本発明の液晶
表示パネルによって解決される。The above problem is that the non-driving electrode 6 divided into a plurality of small electrodes 61 in each unit pixel is opposed to the driving electrode 11 having an active element such as a TFT 12 through the liquid crystal layer 2, and the small electrode 61 is provided. This is solved by the liquid crystal display panel of the present invention in which each has a potential difference.
第２図は本発明になる液晶表示パネルの作用を説明する
図である。FIG. 2 is a diagram for explaining the operation of the liquid crystal display panel according to the present invention.
非駆動電極６を構成する小電極を61a、61b、61cとし、
それぞれの小電極に印加する電圧Va、Vb、Vcを変化させ
ることによって、液晶表示パネルの電気光学特性は第２
図に示す如く変わる。The small electrodes constituting the non-driving electrode 6 are 61a, 61b, 61c,
By changing the voltages Va, Vb, and Vc applied to each small electrode, the electro-optical characteristics of the liquid crystal display panel are set to the second value.
It changes as shown in the figure.
第２図においてＩは小電極61a、61b、61cに印加するV
a、Vb,Vcを共に0Vにした場合、即ち従来の液晶表示パネ
ルと同じ条件にした場合の透過量変化を示す曲線で、駆
動電極11に印加するデータ電圧が閾値V1を超すと透過量
が急激に変化し、データ電圧がV2になると透過量が最小
になることを表している。In FIG. 2, I is V applied to the small electrodes 61a, 61b, 61c.
When a, Vb, Vc are all set to 0V, that is, a curve showing the change in transmission amount under the same conditions as the conventional liquid crystal display panel, when the data voltage applied to the drive electrode 11 exceeds the threshold value V 1 , the transmission amount is increased. Shows that the transmission amount becomes a minimum when the data voltage becomes V 2 due to a rapid change.
またII、III、IVは小電極61a、61b、61cにそれぞれ異な
る電圧Va、Vb、Vc（但しVa＝0V）を印加した場合の、小
電極と駆動電極に挟まれた液晶層の透過量変化を示す曲
線で、IIは小電極61aと駆動電極11に挟まれた液晶層の
透過量変化、IIIは小電極61bと駆動電極11に挟まれた液
晶層の透過量変化、IVは小電極61cと駆動電極11に挟ま
れた液晶層の透過量変化を表す。II, III, and IV are changes in the transmission amount of the liquid crystal layer sandwiched between the small electrode and the drive electrode when different voltages Va, Vb, and Vc (where Va = 0V) are applied to the small electrodes 61a, 61b, and 61c. II is a change in the amount of transmission of the liquid crystal layer sandwiched between the small electrode 61a and the driving electrode 11, III is a change in the amount of transmission of the liquid crystal layer sandwiched between the small electrode 61b and the driving electrode 11, and IV is a small electrode 61c. And the change in the amount of transmission of the liquid crystal layer sandwiched between the drive electrodes 11.
小電極61aと駆動電極11に挟まれた液晶層の透過量は従
来の液晶表示パネルと同様に、データ電圧が閾値V1を超
すと変化が始まりV2で最小になる。小電極61bに印加す
る電圧Vbを適当に選定することにより、小電極61bと駆
動電極11に挟まれた液晶層の透過量は、小電極61aと駆
動電極11に挟まれた液晶層の透過量が最小になる点、即
ちデータ電圧が閾値V2を超すと変化が始まりV3で最小に
なる。同様に小電極61cと駆動電極11に挟まれた液晶層
の透過量は、小電極61bと駆動電極11に挟まれた液晶層
の透過量が最小になる点、即ちデータ電圧が閾値V3を超
すと変化が始まりV4で最小になる。ただしそれぞれの小
電極と駆動電極に挟まれた液晶層の、透過量変化が画素
全体の透過量変化に及ぼす影響は1/3である。The transmission amount of the liquid crystal layer sandwiched between the small electrode 61a and the drive electrode 11 starts to change when the data voltage exceeds the threshold value V 1 and becomes minimum at V 2 as in the conventional liquid crystal display panel. By appropriately selecting the voltage Vb applied to the small electrode 61b, the amount of transmission of the liquid crystal layer sandwiched between the small electrode 61b and the drive electrode 11 is the amount of transmission of the liquid crystal layer sandwiched between the small electrode 61a and the drive electrode 11. Is minimum, that is, when the data voltage exceeds the threshold value V 2 , the change starts and becomes minimum at V 3 . Similarly, the amount of transmission of the liquid crystal layer sandwiched between the small electrode 61c and the drive electrode 11 is the point where the amount of transmission of the liquid crystal layer sandwiched between the small electrode 61b and the drive electrode 11 becomes the minimum, that is, the data voltage is the threshold V 3 . Beyond that point, the change begins and reaches a minimum at V 4 . However, the influence of the change in the amount of transmission of the liquid crystal layer sandwiched between the small electrodes and the drive electrodes on the change in the amount of transmission of the entire pixel is 1/3.
その結果画素全体の透過量変化は曲線ｖに示す如く、デ
ータ電圧が閾値V1を超すと変化が始まりV4で最小になる
緩慢な曲線になり、色彩濃度の制御が容易な液晶表示パ
ネルを形成することができる。As a result, as shown by the curve v, the change in the transmission amount of the whole pixel becomes a slow curve which starts to change when the data voltage exceeds the threshold value V 1 and becomes the minimum value at V 4 , and a liquid crystal display panel in which the color density can be easily controlled is displayed. Can be formed.
以下添付図により本発明の実施例について説明する。第
３図は本発明になる液晶表示パネルの一実施例を示す
図、第４図は実施例の電気光学特性を示す図である。An embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 3 is a diagram showing an embodiment of the liquid crystal display panel according to the present invention, and FIG. 4 is a diagram showing electro-optical characteristics of the embodiment.
本発明になる液晶表示パネルと従来の液晶表示パネルの
相違点は、ガラス基板１に形成された駆動電極11と液晶
層２を介して対向する非駆動電極の構成にあり、本発明
になる液晶表示パネルは第３図（ａ）に示す如く、小電
極61dと小電極61eとで構成された非駆動電極６を具えて
いる。そして一方の小電極61dは全て共通の電極とし他
方の小電極61eは前述の走査電極方向にのみ共通の電極
としている。なお破線で図示した領域はそれぞれの画素
を示している。The difference between the liquid crystal display panel according to the present invention and the conventional liquid crystal display panel lies in the configuration of the non-driving electrode facing the driving electrode 11 formed on the glass substrate 1 with the liquid crystal layer 2 interposed therebetween. As shown in FIG. 3 (a), the display panel has a non-driving electrode 6 composed of a small electrode 61d and a small electrode 61e. One of the small electrodes 61d is a common electrode, and the other of the small electrodes 61e is a common electrode only in the scan electrode direction. The area shown by the broken line shows each pixel.
第３図（ｂ）はそれぞれの電極に印加する電圧を示すタ
イムチャートで、ガラス基板１に形成された走査電極14
にはに示すパルス信号が印加される。またガラス基板
１に形成された表示電極15にはに示す如く、１フレー
ム毎に正方向の電圧と負方向の電圧が交互に印加され
る。表示電極15に印加される電圧はデータ電圧でありそ
の振幅は映像信号に対応して変化する。この表示電極15
に正方向の電圧が印加されるフレームを正フレーム、表
示電極15に負方向の電圧が印加されるフレームを負フレ
ームと称する。FIG. 3 (b) is a time chart showing the voltage applied to each electrode. The scanning electrode 14 formed on the glass substrate 1 is shown in FIG.
The pulse signal shown in is applied to. Further, to the display electrode 15 formed on the glass substrate 1, a positive voltage and a negative voltage are alternately applied for each frame, as indicated by. The voltage applied to the display electrode 15 is a data voltage, and its amplitude changes according to the video signal. This display electrode 15
A frame to which a positive voltage is applied to is referred to as a positive frame, and a frame to which a negative voltage is applied to the display electrode 15 is referred to as a negative frame.
非駆動電極６を構成する小電極61dの電位は常に0Vに設
定しており、他方の小電極61eにはに示すパルス信号
に同期してに示す電圧が印加される。即ち正フレーム
においては小電極61eに−1Vの電圧を、また負フレーム
においては小電極61eに＋1Vの電圧を印加している。The potential of the small electrode 61d forming the non-driving electrode 6 is always set to 0V, and the voltage shown in is applied to the other small electrode 61e in synchronization with the pulse signal shown in. That is, a voltage of -1 V is applied to the small electrode 61e in the positive frame, and a voltage of +1 V is applied to the small electrode 61e in the negative frame.
従来の液晶表示パネルにおける透過量は第４図に破線で
示す如く、データ電圧の2Vの近傍から変化しはじめて3V
の近傍で最小になるのに対し、本実施例の液晶表示パネ
ルにおける透過量は第４図に実線で示す如く、データ電
圧の1Vの近傍から変化しはじめて3Vの近傍で最小にな
る。As shown by the broken line in Fig. 4, the amount of transmission in the conventional liquid crystal display panel starts to change from around 2V of the data voltage and starts to change to 3V.
In contrast, the amount of transmission in the liquid crystal display panel of the present embodiment begins to change from around 1V of the data voltage and becomes minimum near 3V, as shown by the solid line in FIG.
このように非駆動電極を各単位画素内において複数個の
小電極に分割し、且つ小電極にそれぞれ電位差を持たせ
ることによって、透過量変化曲線が緩慢になり色彩濃度
の制御が容易な液晶表示パネルを形成することができ
る。In this way, by dividing the non-driving electrode into a plurality of small electrodes in each unit pixel and giving each small electrode a potential difference, the transmission amount change curve becomes slow and the liquid crystal display in which the color density can be easily controlled. A panel can be formed.
上述の如く本発明によれば多階調表示の容易な液晶表示
パネルを提供することができる。As described above, according to the present invention, it is possible to provide a liquid crystal display panel that can easily display multi-gradation.
第１図は本発明になる液晶表示パネルを示す原理図、 第２図は本発明になる液晶表示パネルの作用を説明する
図、 第３図は本発明になる液晶表示パネルの一実施例を示す
図、 第４図は実施例の電気光学特性を示す図、 第５図は従来の液晶表示パネルを示す断面斜視図、 である。図において １はガラス基板、２は液晶層、 ６は非駆動電極、11は駆動電極、 12は能動素子、14は走査電極、 15は表示電極、 61、61a、61b、61c、61d、61eは小電極、 をそれぞれ表す。FIG. 1 is a principle view showing a liquid crystal display panel according to the present invention, FIG. 2 is a view for explaining the operation of the liquid crystal display panel according to the present invention, and FIG. 3 is an embodiment of the liquid crystal display panel according to the present invention. Fig. 4 is a diagram showing electro-optical characteristics of the embodiment, and Fig. 5 is a sectional perspective view showing a conventional liquid crystal display panel. In the figure, 1 is a glass substrate, 2 is a liquid crystal layer, 6 is a non-driving electrode, 11 is a driving electrode, 12 is an active element, 14 is a scanning electrode, 15 is a display electrode, 61, 61a, 61b, 61c, 61d, 61e are The small electrodes are respectively represented.
Claims (1)
リクス型の液晶表示パネルであって、 各単位画素内において複数個の小電極（61）に分割して
なる非駆動電極（６）を、 液晶層（２）を介して能動素子（12）を具えた駆動電極
（11）に対向せしめ、 且つ該小電極（61）にそれぞれ電位差を持たせてなるこ
とを特徴とする液晶表示パネル。1. An active matrix type liquid crystal display panel having an active element for each pixel, wherein a non-driving electrode (6) divided into a plurality of small electrodes (61) in each unit pixel comprises a liquid crystal. A liquid crystal display panel, characterized in that it is opposed to a drive electrode (11) having an active element (12) through a layer (2), and each of the small electrodes (61) has a potential difference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61161027A JPH073523B2 (en) | 1986-07-09 | 1986-07-09 | LCD display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61161027A JPH073523B2 (en) | 1986-07-09 | 1986-07-09 | LCD display panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6317431A JPS6317431A (en) | 1988-01-25 |
| JPH073523B2 true JPH073523B2 (en) | 1995-01-18 |
Family
ID=15727198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61161027A Expired - Lifetime JPH073523B2 (en) | 1986-07-09 | 1986-07-09 | LCD display panel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH073523B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01181779A (en) * | 1988-01-14 | 1989-07-19 | Watanabe Kikai Kogyo Kk | Washing of laver seaweed and washing machine therefor |
| GB2508845A (en) * | 2012-12-12 | 2014-06-18 | Sharp Kk | Analogue multi-pixel drive |
-
1986
- 1986-07-09 JP JP61161027A patent/JPH073523B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6317431A (en) | 1988-01-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2677593B2 (en) | Display device | |
| JP3311184B2 (en) | Liquid crystal display | |
| JP5290419B2 (en) | Active matrix substrate, liquid crystal panel, liquid crystal display device, liquid crystal display unit, television receiver | |
| TW200539083A (en) | Thin-film-transistor liquid crystal display and driving method thereof | |
| JPH052208B2 (en) | ||
| JPH1062748A (en) | Adjustment method for active matrix display device | |
| KR101122002B1 (en) | Liquid Crystal Display Panel and Method of Driving The Same | |
| KR960007476B1 (en) | Display device and driving method thereof | |
| JPH0895526A (en) | RGB field sequential display type color liquid crystal display device | |
| KR101048700B1 (en) | LCD and its driving method | |
| KR100218041B1 (en) | Liquid crystal display device and driving method of liquid crystal display device | |
| JP2001133753A (en) | Driving method of liquid crystal element | |
| JPH1062741A (en) | Display device | |
| JPH073523B2 (en) | LCD display panel | |
| JP3243185B2 (en) | Active matrix type liquid crystal display device and driving method thereof | |
| US20070146291A1 (en) | Active matrix liquid crystal display and driving method | |
| JPS61275822A (en) | Liquid crystal display device | |
| JP2001117111A (en) | Liquid crystal display device | |
| JP3338410B2 (en) | Driving method of liquid crystal display device | |
| JPS61275824A (en) | liquid crystal display device | |
| KR100923675B1 (en) | Structure of liquid crystal panel and its driving method | |
| KR100304912B1 (en) | Structure and Driving Method of LCD | |
| JP3397828B2 (en) | Liquid crystal display | |
| JPH07334130A (en) | Ferroelectric liquid crystal display device and method for driving ferroelectric liquid crystal display element | |
| KR100879214B1 (en) | LCD display device |