JPH11283759A - Liquid crystal display device - Google Patents
Liquid crystal display deviceInfo
- Publication number
- JPH11283759A JPH11283759A JP10084288A JP8428898A JPH11283759A JP H11283759 A JPH11283759 A JP H11283759A JP 10084288 A JP10084288 A JP 10084288A JP 8428898 A JP8428898 A JP 8428898A JP H11283759 A JPH11283759 A JP H11283759A
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- Japan
- Prior art keywords
- voltage
- liquid crystal
- crystal display
- temperature
- heating element
- 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)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、液晶表示装置に関
し、特に周囲温度が低温である場合でも、液晶ディスプ
レイの表示面の明るさを直ちに最適な明るさになるまで
自動的に調整することができる液晶表示装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display device, and more particularly to a liquid crystal display device capable of automatically adjusting the brightness of the display surface of a liquid crystal display immediately until the brightness reaches an optimum level even when the ambient temperature is low. The present invention relates to a liquid crystal display device that can be used.
【０００２】[0002]
【従来の技術】従来の液晶表示装置は、図３に示すよう
に、映像入力信号を所定の値に変換する信号処理回路１
０６と、電源入力電圧を複数の直流電圧に変換する電源
回路１０７と、信号処理回路１０６から供給される信号
と電源回路１０７から供給される電圧により駆動して映
像を表示する液晶ディスプレイ（以下、ＬＣＤという）
１０３と、電源入力電圧を所定の交流電圧へ変換するイ
ンバータ１０５と、インバータから供給される交流電圧
により点灯し、ＬＣＤ１０３の表示面に輝度を与えるバ
ックライト１０２とから構成されている。2. Description of the Related Art As shown in FIG. 3, a conventional liquid crystal display device has a signal processing circuit 1 for converting a video input signal into a predetermined value.
06, a power supply circuit 107 for converting a power supply input voltage into a plurality of DC voltages, and a liquid crystal display (hereinafter, referred to as a display) driven by a signal supplied from the signal processing circuit 106 and a voltage supplied from the power supply circuit 107. LCD)
The LCD 103 includes an inverter 105 that converts a power supply input voltage into a predetermined AC voltage, and a backlight 102 that is turned on by the AC voltage supplied from the inverter and gives brightness to the display surface of the LCD 103.
【０００３】上記バックライト１０２は、液晶ＬＣＤ１
０３の表示面に輝度を与えるランプ（図示せず）を有し
ている。The backlight 102 is a liquid crystal LCD 1
03 has a lamp (not shown) for giving luminance to the display surface.
【０００４】次に、このような構成における従来の液晶
表示装置の動作について図面を参照して説明する。Next, the operation of the conventional liquid crystal display device having such a configuration will be described with reference to the drawings.
【０００５】図４（ａ）は、時間Ｔに対する電源入力電
圧Ｖｉｎの関係を示す図、図４（ｂ）は、バックライト
１０２に内蔵されたランプの温度変化特性を示す図、図
４（ｃ）は、ＬＣＤ１０３の表示面の輝度変化特性を示
す図である。FIG. 4A is a diagram showing a relationship between a power supply input voltage Vin and time T, FIG. 4B is a diagram showing a temperature change characteristic of a lamp incorporated in the backlight 102, and FIG. () Is a diagram showing a luminance change characteristic of the display surface of the LCD 103.
【０００６】図４（ａ）において、電源入力電圧Vinが
低電位レベルから高電位レベルに変化した時点で、電源
をがオンしたことを意味する。In FIG. 4A, the power supply is turned on when the power supply input voltage Vin changes from a low potential level to a high potential level.
【０００７】まず、電源がオンされると（図４
（ａ））、バックライト１０２に内蔵されたランプの温
度が、自己発熱により自然に上昇する（図４（ｂ））。
すると、ランプの温度の上昇が緩やかであるので、それ
に比例して、ＬＣＤ１０３の表示面の輝度立上り特性も
緩やかになる（図４（ｃ））。そのため、輝度が飽和す
るためには長時間を要したり、周囲温度やランプ電圧あ
るいはランプ電流が所定の値を満たさないときなどの条
件によっては、常温安定輝度まで達しない場合がある。First, when the power is turned on (FIG. 4)
(A)), the temperature of the lamp built in the backlight 102 naturally rises due to self-heating (FIG. 4 (b)).
Then, since the temperature of the lamp rises gradually, the luminance rise characteristic of the display surface of the LCD 103 also becomes gentle in proportion thereto (FIG. 4C). Therefore, it may take a long time for the luminance to be saturated, or may not reach the room temperature stable luminance depending on conditions such as when the ambient temperature, the lamp voltage or the lamp current does not satisfy a predetermined value.
【０００８】このように従来の液晶表示装置は、輝度立
上り特性はランプの自己発熱のみに影響されるため、低
温時の電源投入直後は画面が暗く、長い時間をかけて徐
々に明るくなっていくものである。As described above, in the conventional liquid crystal display device, since the luminance rise characteristic is affected only by the self-heating of the lamp, the screen is dark immediately after the power is turned on at a low temperature and gradually becomes bright over a long time. Things.
【０００９】[0009]
【発明が解決しようとする課題】しかしながら、従来の
液晶表示装置は、低温時における電源投入直後はランプ
自体の輝度特性により、ＬＣＤの表示面の輝度がなかな
か立ち上がらないため、画面が暗くて見えづらいことが
ある等、ＬＣＤの表示面の視認性が良くないという課題
があった。However, in the conventional liquid crystal display device, the brightness of the display surface of the LCD does not readily rise due to the brightness characteristics of the lamp itself immediately after the power is turned on at a low temperature, so that the screen is dark and difficult to see. For example, there is a problem that the visibility of the display surface of the LCD is not good.
【００１０】また、上記課題を解決するためにランプを
暖める何らかの手法を用いた場合、発熱体は電圧を印加
し続ける限り発熱を続けるため、ランプ温度を検知する
為の温度センサと、十分に温度が上昇した後に発熱をス
トップさせるための温度制御回路が必要になり、複雑な
構造で高価になってしまうという課題があった。In order to solve the above-mentioned problem, when any method of heating the lamp is used, the heating element continues to generate heat as long as the voltage is continuously applied. Therefore, a temperature sensor for detecting the lamp temperature and a temperature sensor for sufficiently detecting the temperature of the lamp are required. Therefore, a temperature control circuit for stopping heat generation after the temperature rises is required, and there is a problem that a complicated structure is expensive.
【００１１】それ故、本発明は、上記課題を解決するた
めに、周囲温度が低温である場合でも電源投入後直ちに
ＬＣＤの表示面が明るくなることによって常に視認性を
良好に保ち、かつ簡単な構造で安価な液晶表示装置を提
供することを目的とする。[0011] Therefore, the present invention solves the above-mentioned problems, even if the ambient temperature is low, the display surface of the LCD becomes bright immediately after the power is turned on, so that the visibility is always kept good, and the LCD is simple. It is an object of the present invention to provide an inexpensive liquid crystal display device having a structure.
【００１２】[0012]
【課題を解決するための手段】従って、本発明は、上記
目的を達成するために、映像入力信号を所定の値に変換
する信号処理回路と、電源入力電圧を複数の直流電圧に
変換する電源回路と、前記信号処理回路から供給される
信号と前記電源回路から供給される電圧により駆動して
映像を表示する液晶ディスプレイと、電源入力電圧を所
定の交流電圧へ変換するインバータと、前記インバータ
から供給される交流電圧により点灯し前記液晶ディスプ
レイに画面輝度を与えるバックライトと、電源入力電圧
を所定の一定な直流電圧に変換する電圧制御回路と、前
記電圧制御回路から供給される一定な電圧により発熱し
前記バックライトに熱を伝える発熱体とを具備すること
を特徴とする。SUMMARY OF THE INVENTION Accordingly, in order to achieve the above object, the present invention provides a signal processing circuit for converting a video input signal into a predetermined value, and a power supply for converting a power supply input voltage into a plurality of DC voltages. A circuit, a liquid crystal display driven by a signal supplied from the signal processing circuit and a voltage supplied from the power supply circuit to display an image, an inverter for converting a power supply input voltage to a predetermined AC voltage, A backlight that is lit by the supplied AC voltage and gives screen brightness to the liquid crystal display, a voltage control circuit that converts a power supply input voltage to a predetermined constant DC voltage, and a constant voltage supplied from the voltage control circuit. A heating element that generates heat and transmits heat to the backlight.
【００１３】また、前記発熱体は、温度変化に対する抵
抗値の変化が正特性で、かつ発熱量が低温時に最大とな
り、温度が上昇するに従って自動的に減少することを特
徴とする。Further, the heating element is characterized in that a change in resistance value with respect to a temperature change has a positive characteristic, and a heating value is maximum when the temperature is low, and automatically decreases as the temperature rises.
【００１４】さらに、前記電圧制御回路は、供給される
電圧値を変化させて前記発熱体の最大発熱量を変化させ
ることを特徴とする。Further, the voltage control circuit changes a supplied voltage value to change a maximum heating value of the heating element.
【００１５】[0015]
【発明の実施の形態】次に、本発明にかかる液晶表示装
置の一実施の形態を図面を参照して説明する。Next, an embodiment of a liquid crystal display device according to the present invention will be described with reference to the drawings.
【００１６】図１は、本発明にかかる液晶表示装置の一
実施の形態を示すブロック構成図、図２は、図１の液晶
表示装置の動作を説明するための波形図である。FIG. 1 is a block diagram showing an embodiment of the liquid crystal display device according to the present invention, and FIG. 2 is a waveform diagram for explaining the operation of the liquid crystal display device shown in FIG.
【００１７】本発明の液晶表示装置は、図１に示すよう
に、正温度特性発熱体（以下、発熱体という）１と、バ
ックライト２と、ＬＣＤ３と、電圧制御回路４と、イン
バータ５と、信号処理回路６と、電源回路７とから構成
されている。As shown in FIG. 1, the liquid crystal display device of the present invention comprises a positive temperature characteristic heating element (hereinafter referred to as a heating element) 1, a backlight 2, an LCD 3, a voltage control circuit 4, an inverter 5, , A signal processing circuit 6 and a power supply circuit 7.
【００１８】信号処理回路６は、映像入力信号を所定の
値に変換してＬＣＤ３へ供給する。電源回路７は、電源
入力電圧を複数の直流電圧へ変換し、それぞれ信号処理
回路６及びＬＣＤ３へ供給する。ＬＣＤ３は信号処理回
路６から供給される信号及び電源回路７から供給される
直流電圧によって駆動し、バックライト２を光源として
映像を表示する。The signal processing circuit 6 converts the video input signal into a predetermined value and supplies it to the LCD 3. The power supply circuit 7 converts the power supply input voltage into a plurality of DC voltages, and supplies the DC voltages to the signal processing circuit 6 and the LCD 3 respectively. The LCD 3 is driven by a signal supplied from the signal processing circuit 6 and a DC voltage supplied from the power supply circuit 7, and displays an image using the backlight 2 as a light source.
【００１９】インバータ５は、電源入力電圧を所定の周
波数及び電圧値の交流電圧へ変換し、バックライト２に
内蔵しているランプの電極へ印加する。バックライト２
は、インバータ５から供給される交流電圧によって点灯
し、ＬＣＤ３の表示面に輝度を与える。このバックライ
ト２は、ＬＣＤ３の表示面に輝度を与えるランプ（図示
せず）を有している。The inverter 5 converts a power supply input voltage into an AC voltage having a predetermined frequency and a predetermined voltage value, and applies the AC voltage to electrodes of a lamp incorporated in the backlight 2. Backlight 2
Are turned on by the AC voltage supplied from the inverter 5 to give brightness to the display surface of the LCD 3. The backlight 2 has a lamp (not shown) for giving brightness to the display surface of the LCD 3.
【００２０】電圧制御回路４は、電源入力電圧を所定の
直流電圧へ変換し、発熱体１に供給する。The voltage control circuit 4 converts a power supply input voltage into a predetermined DC voltage and supplies the DC voltage to the heating element 1.
【００２１】発熱体１は、電圧制御回路４から供給され
た直流電圧によって電流が流れ、発熱する。そして、発
生した熱によって、発熱体１は、バックライト２の内部
あるいは近傍に配置され、特にランプに熱を伝える。さ
らにこの発熱体１は、温度変化に対する抵抗値の変化が
正温度特性で、かつ発熱量が低温時に最大となり、温度
が上昇するに従って自動的に減少する。The heating element 1 generates heat when a current flows by the DC voltage supplied from the voltage control circuit 4. The generated heat causes the heating element 1 to be disposed inside or near the backlight 2, and to transmit heat particularly to the lamp. Further, the heating element 1 has a positive temperature characteristic in which a change in resistance value with respect to a temperature change is at a maximum when the heat generation amount is low, and automatically decreases as the temperature rises.
【００２２】また上記直流電圧の値は可変であり、発熱
体１が必要とする最大発熱量に応じて設定することが出
来る。また、発熱体１の発熱量は周囲温度によって変化
する。The value of the DC voltage is variable and can be set according to the maximum heat generation required by the heating element 1. Further, the amount of heat generated by the heating element 1 changes depending on the ambient temperature.
【００２３】このような構成における本発明の液晶表示
装置の動作について、図２を参照して説明する。The operation of the liquid crystal display device of the present invention having such a configuration will be described with reference to FIG.
【００２４】図２（ａ）は、電圧制御回路４の出力電圧
Ｖと時間Ｔの関係を示した図である。Ｖが低電位レベル
から高電位レベルに変化する時点で、電源をオンしたこ
とを意味する。FIG. 2A is a diagram showing the relationship between the output voltage V of the voltage control circuit 4 and the time T. When V changes from the low potential level to the high potential level, it means that the power is turned on.
【００２５】図２（ｂ）は、電源をオンした後の、時間
に対するバックライト２に内蔵されたランプの温度変化
を示す図、図２（ｃ）は、発熱体１の抵抗値Ｒの変化を
示す図、図２（ｄ）は、発熱体１の消費電力Ｗの変化を
示す図、図２（ｅ）は、ＬＣＤ３の表示面の輝度変化を
示す図である。FIG. 2B shows a change in the temperature of the lamp incorporated in the backlight 2 with respect to time after the power is turned on. FIG. 2C shows a change in the resistance value R of the heating element 1. FIG. 2D is a diagram showing a change in power consumption W of the heating element 1, and FIG. 2E is a diagram showing a change in luminance on the display surface of the LCD 3.
【００２６】ここで図２（ａ）から図２（ｄ）を参照す
ると、まず、電源投入直後はランプ温度が低いので、発
熱体１の抵抗値Ｒの値も低い。従って発熱体１には電流
が多く流れ、消費電力Ｗが大きくなるので発熱量は大き
い。Referring now to FIGS. 2A to 2D, first, since the lamp temperature is low immediately after the power is turned on, the resistance value R of the heating element 1 is also low. Therefore, a large amount of current flows through the heating element 1 and the power consumption W increases, so that the heat generation amount is large.
【００２７】そして、発熱体１が発熱してくると、バッ
クライト２に内蔵されたランプに熱が伝わってランプ温
度が上昇し、それに伴い発熱体１の抵抗値Ｒも上昇す
る。発熱体１の抵抗値Ｒが上昇すると、そのとき電圧制
御回路４の出力電圧Ｖは一定であるから、発熱体１の消
費電力は減少し、発熱量も減少する。従って、時間に対
するランプの温度変化の割合が徐々に少なくなり、図２
（ｂ）のグラフは徐々に緩やかなカーブを描くようにな
る。When the heating element 1 generates heat, the heat is transmitted to the lamp incorporated in the backlight 2 and the lamp temperature rises, so that the resistance value R of the heating element 1 also rises. When the resistance value R of the heating element 1 increases, the output voltage V of the voltage control circuit 4 is constant at that time, so that the power consumption of the heating element 1 decreases and the heat generation amount also decreases. Therefore, the ratio of the temperature change of the lamp with respect to time gradually decreases.
The graph of (b) gradually draws a gentle curve.
【００２８】そして、ランプの温度が飽和したときの時
間をｔとすると、時間ｔにおいては発熱体１の抵抗値Ｒ
は十分に大きな値になるため、消費電力Ｗがほとんどゼ
ロに等しくなって発熱体１は発熱しなくなる。When the time when the lamp temperature is saturated is represented by t, at time t, the resistance R
Is sufficiently large, the power consumption W is almost equal to zero, and the heating element 1 does not generate heat.
【００２９】ＬＣＤ３の表示面の輝度変化はバックライ
ト２のランプ温度変化に依存しているので、図２（ｅ）
の変化特性は図２（ｂ）の変化特性とほぼ同様になる。
すなわち、電源をオンした後、発熱体１が発熱してラン
プに熱が伝わり、ランプ温度が急峻に上昇すると、ラン
プの発光効率が上昇し、ＬＣＤ３の表示面の輝度も急峻
に上昇する。その後、発光体１の発熱量の減少に伴っ
て、輝度変化特性を示す曲線は徐々にカーブが緩やかに
なり、時間tで飽和する。Since the change in the luminance of the display surface of the LCD 3 depends on the change in the lamp temperature of the backlight 2, FIG.
Are almost the same as those in FIG. 2B.
That is, after the power is turned on, the heating element 1 generates heat and heat is transmitted to the lamp, and when the lamp temperature rises sharply, the luminous efficiency of the lamp rises and the brightness of the display surface of the LCD 3 also rises sharply. Thereafter, as the calorific value of the luminous body 1 decreases, the curve showing the luminance change characteristic gradually becomes gentle and saturates at time t.
【００３０】したがって、電源投入後から輝度が飽和す
るまでの時間が短縮され、しかも輝度が飽和した後は、
発熱体１は自動的に動作を停止するので、自己温度制御
を行うことができる。Therefore, the time from when the power is turned on until the luminance is saturated is reduced, and after the luminance is saturated,
Since the heating element 1 automatically stops operating, self-temperature control can be performed.
【００３１】[0031]
【発明の効果】以上説明した通り、本発明の液晶表示装
置によれば、低温時における電源投入直後でも、発熱体
の発生する熱が伝わってランプを暖めて、ランプの発光
効率を向上させることにより、液晶ディスプレイの表示
面の輝度立上り時間を短縮するので、周囲温度にかかわ
らず液晶ディスプレイの表示面の視認性を良好に保つこ
とができる。As described above, according to the liquid crystal display device of the present invention, even when the power is turned on at a low temperature, the heat generated by the heating element is transmitted to heat the lamp, thereby improving the luminous efficiency of the lamp. Accordingly, the brightness rise time of the display surface of the liquid crystal display is shortened, so that the visibility of the display surface of the liquid crystal display can be kept good regardless of the ambient temperature.
【００３２】また、ランプを暖める発熱体の温度に対す
る抵抗値が正比例しているので、温度上昇と共に発熱体
の消費電力が減ってゆき、十分に温度が上昇した後に発
熱しなくなるという特性を有しているため、温度センサ
や温度制御回路が不必要であり、簡単な構造で安価に製
造することができる。Further, since the resistance value of the heating element for heating the lamp is directly proportional to the temperature, the power consumption of the heating element decreases as the temperature rises, and the heat is not generated after the temperature is sufficiently increased. Therefore, a temperature sensor and a temperature control circuit are not required, and the device can be manufactured at a low cost with a simple structure.
【００３３】さらに、発熱体の最大発熱量は電圧制御回
路の出力電圧によって決定されるので、電圧制御回路の
出力電圧を可変にすれば最大発熱量を変えることがで
き、輝度立上り特性を状況に応じて任意に設定すること
ができる。Further, since the maximum heating value of the heating element is determined by the output voltage of the voltage control circuit, the maximum heating value can be changed by making the output voltage of the voltage control circuit variable, and the luminance rise characteristic can be changed. It can be set arbitrarily depending on the situation.
【図１】本発明にかかる液晶表示装置の一実施の形態を
示すブロック構成図である。FIG. 1 is a block diagram showing an embodiment of a liquid crystal display device according to the present invention.
【図２】図１の液晶表示装置の動作を説明するための波
形図であり、（ａ）は、電圧制御回路４の出力電圧Ｖと
時間Ｔの関係を示した図、（ｂ）は、電源をオンした後
の、時間に対するバックライト２に内蔵されたランプの
温度変化を示す図、（ｃ）は、発熱体１の抵抗値Ｒの変
化を示す図、（ｄ）は、発熱体１の消費電力Ｗの変化を
示す図、（ｅ）は、ＬＣＤ３の表示面の輝度変化を示す
図である。。FIGS. 2A and 2B are waveform diagrams for explaining the operation of the liquid crystal display device of FIG. 1, wherein FIG. 2A is a diagram showing a relationship between an output voltage V of a voltage control circuit 4 and time T, and FIG. FIG. 3C is a diagram showing a change in temperature of a lamp incorporated in the backlight 2 with respect to time after the power is turned on, FIG. 4C is a diagram showing a change in the resistance value R of the heating element 1, and FIG. And (e) is a diagram showing a change in luminance of the display surface of the LCD 3. .
【図３】従来の液晶表示装置を示すブロック構成図であ
る。FIG. 3 is a block diagram showing a conventional liquid crystal display device.
【図４】図３の液晶表示装置の動作を説明するための波
形図であり、（ａ）は、時間Ｔに対する電源入力電圧Ｖ
ｉｎの関係を示す図、（ｂ）は、バックライト１０２に
内蔵されたランプの温度変化特性を示す図、（ｃ）は、
ＬＣＤ１０３の表示面の輝度変化特性を示す図である。4A and 4B are waveform diagrams for explaining the operation of the liquid crystal display device of FIG. 3, wherein FIG.
FIG. 3B is a diagram showing a relationship between the in. FIG. 4B is a diagram showing a temperature change characteristic of a lamp built in the backlight 102, and FIG.
FIG. 4 is a diagram illustrating a luminance change characteristic of a display surface of the LCD 103.
１ 正温度特性発熱体 ２ バックライト ３ 液晶ディスプレイ ４ 電圧制御回路 ５ インバータ ６ 信号処理回路 ７ 電源回路 REFERENCE SIGNS LIST 1 positive temperature characteristic heating element 2 backlight 3 liquid crystal display 4 voltage control circuit 5 inverter 6 signal processing circuit 7 power supply circuit
Claims (3)
処理回路と、電源入力電圧を複数の直流電圧に変換する
電源回路と、前記信号処理回路から供給される信号と前
記電源回路から供給される電圧により駆動して映像を表
示する液晶ディスプレイと、電源入力電圧を所定の交流
電圧へ変換するインバータと、前記インバータから供給
される交流電圧により点灯し前記液晶ディスプレイの表
示面に輝度を与えるバックライトと、電源入力電圧を所
定の一定な直流電圧に変換する電圧制御回路と、前記電
圧制御回路から供給される一定な電圧により発熱し前記
バックライトに熱を伝える発熱体とを具備することを特
徴とする液晶表示装置。1. A signal processing circuit for converting a video input signal into a predetermined value, a power supply circuit for converting a power supply input voltage into a plurality of DC voltages, a signal supplied from the signal processing circuit, and a signal supplied from the power supply circuit A liquid crystal display that displays an image by being driven by the applied voltage, an inverter that converts a power supply input voltage to a predetermined AC voltage, and is turned on by the AC voltage supplied from the inverter to give brightness to the display surface of the liquid crystal display. A backlight, a voltage control circuit that converts a power supply input voltage into a predetermined constant DC voltage, and a heating element that generates heat by the constant voltage supplied from the voltage control circuit and transmits heat to the backlight. A liquid crystal display device characterized by the above-mentioned.
の変化が正温度特性で、かつ発熱量が低温時に最大とな
り、温度が上昇するに従って自動的に減少することを特
徴とする請求項１記載の液晶表示装置。2. The heating element according to claim 1, wherein a change in resistance value with respect to a temperature change has a positive temperature characteristic, and the heat generation amount is maximum when the temperature is low, and automatically decreases as the temperature rises. The liquid crystal display device as described in the above.
を変化させて前記発熱体の最大発熱量を変化させること
を特徴とする請求項１記載の液晶表示装置。3. The liquid crystal display device according to claim 1, wherein the voltage control circuit changes a supplied voltage value to change a maximum heat value of the heating element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10084288A JPH11283759A (en) | 1998-03-30 | 1998-03-30 | Liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10084288A JPH11283759A (en) | 1998-03-30 | 1998-03-30 | Liquid crystal display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11283759A true JPH11283759A (en) | 1999-10-15 |
Family
ID=13826291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10084288A Pending JPH11283759A (en) | 1998-03-30 | 1998-03-30 | Liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11283759A (en) |
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