JPH05241128A - Liquid crystal color display - Google Patents
Liquid crystal color displayInfo
- Publication number
- JPH05241128A JPH05241128A JP7588092A JP7588092A JPH05241128A JP H05241128 A JPH05241128 A JP H05241128A JP 7588092 A JP7588092 A JP 7588092A JP 7588092 A JP7588092 A JP 7588092A JP H05241128 A JPH05241128 A JP H05241128A
- Authority
- JP
- Japan
- Prior art keywords
- primary color
- circuit
- liquid crystal
- temperature
- color signals
- 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.)
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- Liquid Crystal (AREA)
- Liquid Crystal Display Device Control (AREA)
- Video Image Reproduction Devices For Color Tv Systems (AREA)
Abstract
(57)【要約】
【目的】 液晶カラー表示装置における温度変化に対す
る自動調整を、３原色信号の夫々に対して最適に行う。
【構成】 表示部９に温度検出素子１を設け、検出した
温度における画素２の印加電圧と３原色光の透過率の関
係に基づいて、γ変換回路３でのγ変換とバイアス回路
５からのバイアスを３原色信号毎に調整する。
【効果】 ３原色信号が温度変化に対して最適に自動調
整されるので、画像品質が向上する。
(57) [Abstract] [Purpose] Optimum automatic adjustment for temperature changes in a liquid crystal color display device for each of the three primary color signals. The temperature detecting element 1 is provided in the display unit 9, and the γ conversion in the γ conversion circuit 3 and the bias circuit 5 from the bias circuit 5 are performed based on the relationship between the applied voltage of the pixel 2 and the transmittance of the three primary color lights at the detected temperature. The bias is adjusted for each of the three primary color signals. [Effect] Since the three primary color signals are automatically and optimally adjusted with respect to the temperature change, the image quality is improved.
Description
【０００１】[0001]
【産業上の利用分野】本発明は、液晶カラー表示装置に
関するもので、詳しくは温度変化による画素の特性変動
に対する自動調整に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal color display device, and more particularly, to automatic adjustment for pixel characteristic variation due to temperature variation.
【０００２】[0002]
【従来の技術】一般に液晶カラー表示装置は、輝度信号
と色信号に基づいて３原色信号を各々出力するマトリッ
クス回路と、このマトリックス回路から出力された３原
色信号に、画素に用いた液晶についての印加電圧と透過
率との関係に対応する非線形性を持たせるγ変換回路
と、γ変換された３原色信号の夫々に、画素に用いた液
晶の透過率が変動しない領域に対応する電圧を加えるバ
イアス発生回路とを有するものとなっている。2. Description of the Related Art Generally, a liquid crystal color display device includes a matrix circuit for outputting three primary color signals based on a luminance signal and a color signal, and a liquid crystal used for a pixel for the three primary color signals output from the matrix circuit. A γ conversion circuit that gives a non-linearity corresponding to the relationship between the applied voltage and the transmittance, and a voltage corresponding to a region where the transmittance of the liquid crystal used for the pixel does not change is added to each of the γ-converted three primary color signals. And a bias generation circuit.
【０００３】ところで、液晶の印加電圧と透過率との関
係は、温度によって変動するため、外気温の変動や装置
自体の発熱に応じて調整を行う必要がある。By the way, the relationship between the applied voltage of the liquid crystal and the transmittance changes depending on the temperature, and therefore it is necessary to adjust the relationship according to the change of the outside air temperature and the heat generation of the device itself.
【０００４】従来、上記調整を手動で行う煩わしさを解
消するために、る黒レベル電位の温度係数と絶対値の等
しい温度係数の基準電源を設け、基準電源の出力電位に
基づいて輝度信号の電位を自動調節することが提案され
ている（特開昭64-68795号公報)。即ち、この提案は、温
度変化に対応するための自動調整を、３原色信号を得る
前に３原色信号共通で行うものである。Conventionally, in order to eliminate the trouble of manually performing the above adjustment, a reference power source having a temperature coefficient whose absolute value is equal to the temperature coefficient of the black level potential is provided, and the luminance signal of the luminance signal is generated based on the output potential of the reference power source. It has been proposed that the electric potential is automatically adjusted (Japanese Patent Laid-Open No. 64-68795). That is, in this proposal, automatic adjustment for responding to a temperature change is performed in common for the three primary color signals before the three primary color signals are obtained.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、画素の
印加電圧と３原色光の透過率の関係は、光の色によって
相違する。However, the relationship between the voltage applied to the pixel and the transmittance of the three primary color lights differs depending on the color of the light.
【０００６】図７及び図８は、液晶のリタゼーション
（液晶介在厚さ×液晶の複屈折率）を横軸に、液晶の透
過率を縦軸にとって、黒色表示時の波長の異なる光のリ
タゼーションと透過率の関係を示したもので、この関係
から明らかなように、３原色の画素が同一の状態で形成
されているとすると、３原色光の透過率は異なるものと
なる。従って、従来のように３原色信号を共通に調整し
た場合、せっかく温度変化に対応させるための自動調整
を行っているにも拘わらず、例えば黒を表示すべき箇所
に色が付いてしまうことも生じる。FIG. 7 and FIG. 8 show the retardation of light having different wavelengths during black display, with the horizontal axis representing the liquid crystal retardation (liquid crystal intervening thickness x liquid crystal birefringence) and the vertical axis representing the liquid crystal transmittance. The relationship between the zation and the transmittance is shown. As is clear from this relationship, if the pixels of the three primary colors are formed in the same state, the transmittances of the light of the three primary colors are different. Therefore, when the three primary color signals are commonly adjusted as in the conventional art, for example, black may be added to a portion where black should be displayed, even though the automatic adjustment is made to cope with the temperature change. Occurs.
【０００７】本発明は、このような従来の問題点にかん
がみてなされたもので、温度変化に対応するための自動
調整を、３原色信号の夫々に対して最適に行うことがで
きるようにすることを目的とする。The present invention has been made in view of such conventional problems, and enables automatic adjustment for responding to temperature changes to be optimally performed for each of the three primary color signals. The purpose is to
【０００８】[0008]
【課題を解決するための手段】このために本発明で講じ
られた手段を、第１の実施例に対応する図１で説明する
と、本発明では、表示部９の温度を検出する温度検出素
子１と、３原色信号を各々γ変換するγ変換回路３と、
温度検出素子１で検出された温度下での画素２の印加電
圧と３原色光の各透過率との関係に基づいて対応する３
原色信号の各γ変換が行われるようにγ変換回路３を制
御するγ変換コントロール回路４と、温度検出素子１で
検出された温度下で３原色光の透過率が変動しない画素
２の各電圧領域に対応する電圧を３原色信号の夫々に対
するバイアスとして、γ変換された対応する３原色信号
に加えるバイアス回路５とを有する液晶カラー表示装置
としているものである。Means for solving the problems will be described with reference to FIG. 1 corresponding to the first embodiment. In the present invention, a temperature detecting element for detecting the temperature of a display section 9 is described. A γ conversion circuit 3 for γ converting each of the 1 and 3 primary color signals;
The corresponding 3 based on the relationship between the applied voltage of the pixel 2 and the respective transmittances of the three primary color lights under the temperature detected by the temperature detecting element 1.
The γ conversion control circuit 4 that controls the γ conversion circuit 3 so that each γ conversion of the primary color signal is performed, and each voltage of the pixel 2 in which the transmittance of the three primary color lights does not change under the temperature detected by the temperature detection element 1. The liquid crystal color display device is provided with a bias circuit 5 that applies the voltage corresponding to the region to each of the three primary color signals as a bias to the corresponding three primary color signals that have been γ-converted.
【０００９】[0009]
【実施例及び作用】図１は本発明の第１の実施例を示す
もので、図中６はマトリックス回路で、輝度信号Ｙと色
信号Ｃに基づいて、３原色信号（Ｒ：赤、Ｇ：緑、Ｂ：
青）を出力するものである。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a first embodiment of the present invention. In FIG. 1, reference numeral 6 denotes a matrix circuit which, on the basis of a luminance signal Y and a color signal C, provides three primary color signals (R: red, G). : Green, B:
It outputs blue).
【００１０】上記マトリックス回路６は、３原色信号に
対応して設けられた３つのγ変換回路３に接続されてい
る。このγ変換回路３は、画素２の印加電圧と透過率の
関係、即ち使用する液晶の印加電圧と透過率の関係が直
線で表示される関係ではなく、図６に示されるように非
線形で表示される関係であることから、３原色信号の夫
々にこの非線形特性を付与するものである。The matrix circuit 6 is connected to the three γ conversion circuits 3 provided corresponding to the three primary color signals. In the γ conversion circuit 3, the relationship between the applied voltage of the pixel 2 and the transmittance, that is, the relationship between the applied voltage of the liquid crystal used and the transmittance is not displayed in a straight line, but is displayed in a non-linear manner as shown in FIG. This non-linear characteristic is given to each of the three primary color signals.
【００１１】γ変換回路３は、夫々反転駆動回路７に接
続されている。この反転駆動回路７は、一定周期毎に共
通電極電位に対して信号の正負を逆転させ、画素２の正
側駆動と負側駆動を一定周期毎に交互に発生させるもの
である。この反転駆動回路７は、例えば液晶としてＴＮ
液晶を用いた場合に、画素２を正側又は負側のみで駆動
した場合の生じる所謂焼き付きを防止するためのもので
ある。The γ conversion circuit 3 is connected to the inversion drive circuit 7, respectively. The inversion drive circuit 7 inverts the positive / negative of the signal with respect to the common electrode potential in a constant cycle, and alternately generates positive side driving and negative side driving of the pixel 2 in a constant cycle. The inversion drive circuit 7 is, for example, a TN as a liquid crystal.
This is for preventing so-called burn-in that occurs when the pixel 2 is driven only on the positive side or the negative side when liquid crystal is used.
【００１２】反転駆動回路７から出力された３原色信号
は、バイアス回路５によってバイアス電圧が加えられた
後液晶駆動電圧変換回路８に入力されるものとなってい
る。The three primary color signals output from the inversion drive circuit 7 are input to the liquid crystal drive voltage conversion circuit 8 after the bias voltage is applied by the bias circuit 5.
【００１３】図６から明らかなように、通常液晶には透
過率が変動しない電圧領域（図６では１．５Ｖ程度）が
ある。このため、液晶の透過率を変動させるためにはこ
の電圧領域以上の電圧を液晶、即ち画素２に印加する必
要がある。バイアス回路５は、この電圧領域以上の電圧
を３原色信号の夫々に持たせるために、当該電圧領域に
対応する電圧をバイアスとして３原色信号に加えるもの
である。また、液晶駆動電圧変換回路８は、３原色信号
を夫々対応する駆動信号ＶR ，ＶG ，ＶB として表示部
９へ出力するものである。As is apparent from FIG. 6, the normal liquid crystal has a voltage region (about 1.5 V in FIG. 6) in which the transmittance does not change. Therefore, in order to change the transmittance of the liquid crystal, it is necessary to apply a voltage higher than this voltage range to the liquid crystal, that is, the pixel 2. The bias circuit 5 applies a voltage corresponding to the voltage region to the three primary color signals as a bias so that each of the three primary color signals has a voltage higher than this voltage region. The liquid crystal drive voltage conversion circuit 8 outputs the three primary color signals to the display unit 9 as corresponding drive signals V R , V G , and V B , respectively.
【００１４】表示部９は、特に図２に明示されるよう
に、Ｒ，Ｇ，Ｂの各画素２と、これを駆動するための垂
直ラインドライバ１０及び水平ラインドライバ１１と、
Ｒ，Ｇ，Ｂの各駆動信号ＶR ，ＶG ，ＶB をＯＮ・ＯＦ
Ｆするデータ線入力スイッチ１２を有している。特に本
発明においては、これらの他に、温度検出素子１が設け
られている。尚、２ａは駆動トランジスタ、２ｂは液晶
層である。As shown in FIG. 2, the display unit 9 includes R, G, and B pixels 2, a vertical line driver 10 and a horizontal line driver 11 for driving the pixels 2, respectively.
ON / OFF of R, G, B drive signals V R , V G , V B
It has a data line input switch 12 for F. Particularly in the present invention, in addition to these, the temperature detecting element 1 is provided. In addition, 2a is a drive transistor and 2b is a liquid crystal layer.
【００１５】図３に明示されるように、温度検出素子１
は、駆動トランジスタ２ａと同一の工程で製造できるダ
イオードが最適で、またできるだけ画素２に接近して形
成することが好ましい。尚、図３において、Ａはアノー
ド、Ｋはカソード、１５は透明な絶縁層、１６は画素電
極、１７は配向層、１８は共通電極、１９は透明基板、
２０は遮光層、２１はカラーフィルタである。As clearly shown in FIG. 3, the temperature detecting element 1
Is most preferably a diode that can be manufactured in the same process as the driving transistor 2a, and is preferably formed as close to the pixel 2 as possible. In FIG. 3, A is an anode, K is a cathode, 15 is a transparent insulating layer, 16 is a pixel electrode, 17 is an alignment layer, 18 is a common electrode, 19 is a transparent substrate,
Reference numeral 20 is a light shielding layer, and 21 is a color filter.
【００１６】温度検出素子１は、表示部９の温度を検出
するためのもので、図１に示されるように温度検出回路
１３に接続されている。温度検出回路１３は、温度検出
素子１の出力を電圧に変換する回路で、例えば図３に示
されるような回路が利用できる。The temperature detecting element 1 is for detecting the temperature of the display section 9, and is connected to the temperature detecting circuit 13 as shown in FIG. The temperature detection circuit 13 is a circuit for converting the output of the temperature detection element 1 into a voltage, and for example, a circuit as shown in FIG. 3 can be used.
【００１７】図４に示される温度検出回路１３は、温度
検出素子１としてダイオードを使用し、このダイオード
にオペアンプの仮想接地を用いてＶC ／Ｒの電流を流
し、アノードＡとカソードＫの電位差ＶA-K を検出する
ものである。図４に示される温度検出回路１３の出力Ｖ
tempの特性は図５に示されるようなもので、Ｖtemp＝Ｖ
C ＋ＶA-K であり、ＶA-K が約−２ｍＶ／℃の温度特性
を有するので温度計として使用できるものである。In the temperature detecting circuit 13 shown in FIG. 4, a diode is used as the temperature detecting element 1, a virtual ground of an operational amplifier is used to flow a current of V C / R, and the potential difference between the anode A and the cathode K is made. V AK is detected. Output V of temperature detection circuit 13 shown in FIG.
The characteristics of temp are as shown in FIG. 5, where V temp = V
A C + V AK, those that can be used as a thermometer because V AK has a temperature characteristic of about -2 mV / ° C..
【００１８】温度検出回路１３は、バイアス回路５とγ
変換コントロール回路４に接続されている。The temperature detecting circuit 13 includes a bias circuit 5 and a γ
It is connected to the conversion control circuit 4.
【００１９】バイアス回路５に温度検出回路１３を接続
しているのは、図７及び図８で説明したように、３原色
光の夫々で、画素２への印加電圧と透過率の関係が相違
するためである。この温度検出回路１３が接続されたバ
イアス回路５は、液晶の透過率が変動しない電圧領域
を、温度検出素子１で検出された温度下での画素２の印
加電圧と３原色光の夫々の透過率との各関係から定め
て、これに対応する電圧をバイアスとして３原色信号に
夫々加えるものである。The temperature detection circuit 13 is connected to the bias circuit 5 as described with reference to FIGS. 7 and 8, and the relationship between the voltage applied to the pixel 2 and the transmittance is different for each of the three primary color lights. This is because The bias circuit 5 to which the temperature detecting circuit 13 is connected is configured such that a voltage region in which the transmittance of the liquid crystal does not fluctuate is applied to the pixel 2 under the temperature detected by the temperature detecting element 1 and the three primary color lights are transmitted. It is determined from each relationship with the ratio, and a voltage corresponding to this is added as a bias to each of the three primary color signals.
【００２０】一方、温度検出回路１３が接続されたγ変
換コントロール回路４は前述したγ変換回路３に接続さ
れている。温度検出回路１３が接続されたγ変換コント
ロール回路４は、γ変換回路３で行うγ変換が、温度検
出素子１で検出した温度に応じて行われるよう、γ変換
回路３を制御するものである。即ち、このγ変換コント
ロール回路４によって、γ変換回路３で行われる３原色
信号についてのγ変換が、温度検出素子１で検出された
温度下での画素２の印加電圧と３原色光の透過率の各関
係に基いて行われることになる。On the other hand, the γ conversion control circuit 4 to which the temperature detection circuit 13 is connected is connected to the γ conversion circuit 3 described above. The γ conversion control circuit 4 to which the temperature detection circuit 13 is connected controls the γ conversion circuit 3 so that the γ conversion performed by the γ conversion circuit 3 is performed according to the temperature detected by the temperature detection element 1. .. That is, the γ conversion control circuit 4 performs γ conversion on the three primary color signals performed by the γ conversion circuit 3 under the temperature detected by the temperature detection element 1 and the applied voltage of the pixel 2 and the transmittance of the three primary color light. Will be based on each relationship.
【００２１】尚、以上の第１の実施例においては、反転
駆動回路７からの出力にバイアス回路５からの出力を加
えるようになっているが、バイアス回路５からの出力
は、反転駆動回路７に入力される前のγ変換回路３から
の出力に加えてもよい。In the first embodiment described above, the output from the bias circuit 5 is added to the output from the inverting drive circuit 7, but the output from the bias circuit 5 is the output from the inverting drive circuit 7. It may be added to the output from the γ conversion circuit 3 before being input to.
【００２２】図９及び図１０は本発明の第２の実施例を
示すもので、本実施例における表示部９では、ＲとＧ、
ＧとＢ、ＢとＲの入力が共通に接続されており、この接
続状態でＲ、Ｇ、Ｂの各画素２を正しく駆動するため
に、入力切換スイッチ１４が設けられている点、及び、
バイアス回路５がγ変換回路３と反転駆動回路７の間に
接続されている点以外は前述の第１の実施例と同様であ
る。また、本第２の実施例においては、入力切換スイッ
チ１４を、液晶駆動電圧変換回路８と表示部９との間に
設けているが、これはγ変換回路３と反転駆動回路７の
間に設けてもよい。9 and 10 show a second embodiment of the present invention. In the display section 9 of this embodiment, R and G,
The inputs of G and B and the inputs of B and R are commonly connected, and in order to correctly drive each pixel 2 of R, G, and B in this connection state, an input changeover switch 14 is provided, and
It is the same as the above-described first embodiment except that the bias circuit 5 is connected between the γ conversion circuit 3 and the inverting drive circuit 7. In addition, in the second embodiment, the input changeover switch 14 is provided between the liquid crystal drive voltage conversion circuit 8 and the display unit 9, but it is provided between the γ conversion circuit 3 and the inversion drive circuit 7. It may be provided.
【００２３】図１１は本発明の第３の実施例を示すもの
で、３原色の各々について、＋側で駆動するための入力
ラインと−側で駆動するための入力ラインの合計６本の
入力ラインを有する表示部９に対応させたもので、３原
色の夫々につき、＋側と−側の夫々の液晶駆動電圧変換
回路８と夫々の入力ラインを有するものとなっている点
以外は第２の実施例と同様である。FIG. 11 shows the third embodiment of the present invention. For each of the three primary colors, a total of six inputs, namely, an input line for driving on the + side and an input line for driving on the-side are provided. It corresponds to the display unit 9 having a line, and is different from the second one except that each of the three primary colors has a liquid crystal drive voltage conversion circuit 8 on the + side and a liquid crystal drive voltage conversion circuit on the − side, and an input line. It is similar to the embodiment of.
【００２４】[0024]
【発明の効果】本発明は、以上説明した通りのものであ
り、３原色信号を、夫々温度変化に応じて最適な調整を
自動的に行なった上で入力することができるので、温度
変化に拘らず高品質な画像を自動的に得ることができる
ものである。The present invention is as described above, and since the three primary color signals can be input after automatically performing the optimum adjustment according to the temperature change, respectively. Regardless of this, a high quality image can be automatically obtained.
【図１】本発明の第１の実施例の説明図である。FIG. 1 is an explanatory diagram of a first embodiment of the present invention.
【図２】第１の実施例における表示部の等価回路図であ
る。FIG. 2 is an equivalent circuit diagram of a display unit in the first embodiment.
【図３】表示部の温度検出素子付近の断面図である。FIG. 3 is a cross-sectional view in the vicinity of a temperature detection element of a display unit.
【図４】温度検出回路の説明図である。FIG. 4 is an explanatory diagram of a temperature detection circuit.
【図５】図４に示される温度検出回路の特性を示すグラ
フである。5 is a graph showing characteristics of the temperature detection circuit shown in FIG.
【図６】液晶の印加電圧と等価率の関係を示すグラフで
ある。FIG. 6 is a graph showing the relationship between the applied voltage of liquid crystal and the equivalent ratio.
【図７】液晶のリタゼーションと透過率の関係を示すグ
ラフである。FIG. 7 is a graph showing the relationship between liquid crystal retardation and transmittance.
【図８】図６のグラフの部分拡大図である。8 is a partially enlarged view of the graph of FIG.
【図９】本発明の第２の実施例の説明図である。FIG. 9 is an explanatory diagram of a second embodiment of the present invention.
【図１０】第２の実施例における表示部の等価回路図で
ある。FIG. 10 is an equivalent circuit diagram of the display unit in the second embodiment.
【図１１】本発明の第３の実施例の説明図である。FIG. 11 is an explanatory diagram of the third embodiment of the present invention.
１ 温度検出素子 ２ 画素 ２ａ 駆動トランジスタ ２ｂ 液晶層 ３ γ変換回路 ４ γ変換コントロール回路 ５ バイアス回路 ６ マトリックス回路 ７ 反転駆動回路 ８ 液晶駆動電圧変換回路 ９ 表示部 １０ 垂直ラインドライバ １１ 水平ラインドライバ １２ データ線入力スイッチ １３ 温度検出回路 １４ 入力切換スイッチ １５ 絶縁層 １６ 画素電極 １７ 配向層 １８ 共通電極 １９ 透明基板 ２０ 遮光層 ２１ カラーフィルタ 1 temperature detection element 2 pixel 2a drive transistor 2b liquid crystal layer 3 γ conversion circuit 4 γ conversion control circuit 5 bias circuit 6 matrix circuit 7 inverting drive circuit 8 liquid crystal drive voltage conversion circuit 9 display unit 10 vertical line driver 11 horizontal line driver 12 data Line input switch 13 Temperature detection circuit 14 Input selector switch 15 Insulating layer 16 Pixel electrode 17 Alignment layer 18 Common electrode 19 Transparent substrate 20 Light-shielding layer 21 Color filter
Claims (1)
と、 ３原色信号を各々γ変換するγ変換回路と、 温度検出素子で検出された温度下での画素の印加電圧と
３原色光の各透過率との関係に基づいて対応する３原色
信号の各γ変換が行われるようにγ変換回路を制御する
γ変換コントロール回路と、 温度検出素子で検出された温度下で３原色光の透過率が
変動しない画素の各電圧領域に対応する電圧を３原色信
号の夫々に対するバイアスとして、γ変換された対応す
る３原色信号に加えるバイアス回路とを有することを特
徴とする液晶カラー表示装置。1. A temperature detection element for detecting the temperature of a display section, a γ conversion circuit for γ-converting each of the three primary color signals, an applied voltage to a pixel under the temperature detected by the temperature detection element, and three primary color lights. A γ conversion control circuit that controls the γ conversion circuit so that each γ conversion of the corresponding three primary color signals is performed based on the relationship with each transmittance, and the transmission of the three primary color light under the temperature detected by the temperature detection element. A liquid crystal color display device comprising: a bias circuit that applies a voltage corresponding to each voltage region of a pixel whose rate does not change to each of the three primary color signals as a bias to the corresponding three primary color signals that have been γ-converted.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07588092A JP3230010B2 (en) | 1992-02-28 | 1992-02-28 | LCD color display |
| EP93103105A EP0558060B1 (en) | 1992-02-28 | 1993-02-26 | Liquid crystal display |
| DE69319943T DE69319943T2 (en) | 1992-02-28 | 1993-02-26 | Liquid crystal display device |
| US08/753,046 US5748171A (en) | 1992-02-28 | 1996-11-19 | Liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07588092A JP3230010B2 (en) | 1992-02-28 | 1992-02-28 | LCD color display |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05241128A true JPH05241128A (en) | 1993-09-21 |
| JP3230010B2 JP3230010B2 (en) | 2001-11-19 |
Family
ID=13589042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP07588092A Expired - Fee Related JP3230010B2 (en) | 1992-02-28 | 1992-02-28 | LCD color display |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3230010B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100417716B1 (en) * | 2000-02-07 | 2004-02-11 | 후다바 덴시 고교 가부시키가이샤 | Organic electroluminescence device and method for driving same |
| KR100481345B1 (en) * | 2000-12-01 | 2005-04-07 | 가부시키가이샤 히타치세이사쿠쇼 | Liquid Crystal Display Devices |
| JP2005234580A (en) * | 2004-02-20 | 2005-09-02 | Samsung Electronics Co Ltd | Pulse compensator, image display device having the same, and driving method of image display device |
| JP2008020911A (en) * | 2006-07-13 | 2008-01-31 | Samsung Electronics Co Ltd | Gate-on voltage generation circuit, driving device, and display device including the same |
| KR100813082B1 (en) * | 2000-06-13 | 2008-03-14 | 가부시키가이샤 한도오따이 에네루기 켄큐쇼 | Display device |
| JP2010122703A (en) * | 1999-10-13 | 2010-06-03 | Sharp Corp | Liquid crystal display and method of controlling the same |
| US8279165B2 (en) | 1999-10-13 | 2012-10-02 | Sharp Kabushiki Kaisha | Apparatus and method to improve quality of moving image displayed on liquid crystal display device |
-
1992
- 1992-02-28 JP JP07588092A patent/JP3230010B2/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010122703A (en) * | 1999-10-13 | 2010-06-03 | Sharp Corp | Liquid crystal display and method of controlling the same |
| US8279165B2 (en) | 1999-10-13 | 2012-10-02 | Sharp Kabushiki Kaisha | Apparatus and method to improve quality of moving image displayed on liquid crystal display device |
| US8421742B2 (en) | 1999-10-13 | 2013-04-16 | Sharp Kabushiki Kaisha | Apparatus and method to improve quality of moving image displayed on liquid crystal display device |
| KR100417716B1 (en) * | 2000-02-07 | 2004-02-11 | 후다바 덴시 고교 가부시키가이샤 | Organic electroluminescence device and method for driving same |
| KR100813082B1 (en) * | 2000-06-13 | 2008-03-14 | 가부시키가이샤 한도오따이 에네루기 켄큐쇼 | Display device |
| KR100481345B1 (en) * | 2000-12-01 | 2005-04-07 | 가부시키가이샤 히타치세이사쿠쇼 | Liquid Crystal Display Devices |
| JP2005234580A (en) * | 2004-02-20 | 2005-09-02 | Samsung Electronics Co Ltd | Pulse compensator, image display device having the same, and driving method of image display device |
| US9361845B2 (en) | 2004-02-20 | 2016-06-07 | Samsung Display Co., Ltd. | Display device compensating clock signal with temperature |
| US10140944B2 (en) | 2004-02-20 | 2018-11-27 | Samsung Display Co., Ltd. | Display device compensating clock signal with temperature |
| JP2008020911A (en) * | 2006-07-13 | 2008-01-31 | Samsung Electronics Co Ltd | Gate-on voltage generation circuit, driving device, and display device including the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3230010B2 (en) | 2001-11-19 |
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